English language - Dictionaries Z...

                         Oxford English Reference

                      British Library Cataloguing Data
         The concise Oxford dictionary of current English.--8th ed.
                     1. English language--Dictionaries
                 I. Allen, R. E. (Robert Edward), 1944-423
                       ISBN 0-19-861243-5 thumb index
                          ISBN 0-19-861200-1 plain

1.0 Z
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   Z         n.  (also z) (pl.  Zs or Z's) 1 the twenty-sixth letter of the
             alphabet.  2 (usu.  z) Algebra the third unknown quantity.  3
             Geom. the third coordinate.  4 Chem. atomic number.

2.0 zabaglione...
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   zabaglione
             n.  an Italian sweet of whipped and heated egg yolks, sugar, and
             (esp.  Marsala) wine.  [It.]

   zaffre    n.  (US zaffer) an impure cobalt oxide used as a blue pigment.
             [It.  zaffera or F safre]

   zag       n.  a sharp change of direction in a zigzag course.  [ZIGZAG]

   ZANU      abbr.  Zimbabwe African National Union.

   zany      adj. & n.  --adj.  (zanier, zaniest) comically idiotic; crazily
             ridiculous.  --n.  1 a buffoon or jester.  2 hist. an attendant
             clown awkwardly mimicking a chief clown in shows; a merry
             andrew.  ЬЬzanily adv.  zaniness n.  [F zani or It.  zan(n)i,
             Venetian form of Gianni, Giovanni John]

   zap       v., n., & int.  sl.  --v.  (zapped, zapping) 1 tr.  a kill or
             destroy; deal a sudden blow to.  b hit forcibly (zapped the ball
             over the net).  2 intr. & tr. move quickly and vigorously.  3
             tr. overwhelm emotionally.  4 tr.  Computing erase or change (an
             item in a program).  5 intr. (foll. by through) fast-wind a
             videotape to skip a section.  --n.  1 energy, vigour.  2 a
             strong emotional effect.  --int. expressing the sound or impact
             of a bullet, ray gun, etc., or any sudden event.  [imit.]

   zapateado n.  (pl.  -os) 1 a flamenco dance with rhythmic stamping of the
             feet.  2 this technique or action.  [Sp. f.  zapato shoe]

   zappy     adj.  (zappier, zappiest) colloq.  1 lively, energetic.  2
             striking.

   ZAPU      abbr.  Zimbabwe African People's Union.

   zarape    var. of SERAPE.

   Zarathustrian
             var. of ZOROASTRIAN.

   zariba    n.  (also zareba) 1 a hedged or palisaded enclosure for the
             protection of a camp or village in the Sudan etc.  2 a
             restricting or confining influence.  [Arab.  zariba cattle-pen]

   zarzuela  n.  a Spanish traditional form of musical comedy.  [Sp.: app. f.
             a place-name]

   zax       var. of SAX(2).

3.0 zeal...
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   zeal      n.  1 earnestness or fervour in advancing a cause or rendering
             service.  2 hearty and persistent endeavour.  [ME zele f. eccl.L
             zelus f. Gk zelos]

   zealot    n.  1 an uncompromising or extreme partisan; a fanatic.  2
             (Zealot) hist. a member of an ancient Jewish sect aiming at a
             world Jewish theocracy and resisting the Romans until AD 70.
             ЬЬzealotry n.  [eccl.L zelotes f. Gk zelotes (as ZEAL)]

   zealous   adj.  full of zeal; enthusiastic.  ЬЬzealously adv.  zealousness
             n.

   zebec     (also zebeck) var. of XEBEC.

   zebra     n.  1 any of various African quadrupeds, esp.  Equus burchelli,
             related to the ass and horse, with black and white stripes.  2
             (attrib.) with alternate dark and pale stripes.  Ьzebra crossing
             Brit.  a striped street-crossing where pedestrians have
             precedence over vehicles.  ЬЬzebrine adj.  [It. or Port. f.
             Congolese]

   zebu      n.  a humped ox, Bos indicus, of India, E. Asia, and Africa.  [F
             z‚bu, of unkn. orig.]

   Zech.     abbr.  Zechariah (Old Testament).

   zed       n.  Brit.  the letter Z.  [F zЉde f. LL zeta f. Gk ZETA]

   zedoary   n.  an aromatic ginger-like substance made from the rootstock of
             E.  Indian plants of the genus Curcuma and used in medicine,
             perfumery, and dyeing.  [ME f. med.L zedoarium f. Pers.  zidwar]

   zee       n.  US the letter Z.  [17th c.: var. of ZED]

   Zeeman effect
             n.  Physics the splitting of the spectrum line into several
             components by a magnetic field.  [P.  Zeeman, Du. physicist d.
             1943]

   zein      n.  Biochem.  the principal protein of maize.  [Zea the generic
             name of maize + -IN]

   Zeitgeist n.  1 the spirit of the times.  2 the trend of thought and
             feeling in a period.  [G f.  Zeit time + Geist spirit]

   Zen       n.  a form of Mahayana Buddhism emphasizing the value of
             meditation and intuition.  ЬЬZenist n.  (also Zennist).  [Jap.,
             = meditation]

   zenana    n.  the part of a house for the seclusion of women of high-caste
             families in India and Iran.  [Hind.  zenana f. Pers.  zanana f.
             zan woman]

   Zend      n.  an interpretation of the Avesta, each Zend being part of the
             Zend-Avesta.  ЬZend-Avesta the Zoroastrian sacred writings of
             the Avesta or text and Zend or commentary.  [Pers.  zand
             interpretation]

   Zener cards
             n.  a set of 25 cards each with one of five different symbols,
             used in ESP research.  [K. E.  Zener, Amer. psychologist b.
             1903]

   zenith    n.  1 the part of the celestial sphere directly above an
             observer (opp.  NADIR).  2 the highest point in one's fortunes;
             a time of great prosperity etc.  Ьzenith distance an arc
             intercepted between a celestial body and its zenith; the
             complement of a body's altitude.  [ME f. OF cenit or med.L cenit
             ult. f. Arab.  samt (ar-ra' s) path (over the head)]

   zenithal  adj.  of or relating to a zenith.  Ьzenithal projection a
             projection of part of a globe on to a plane tangential to the
             centre of the part, showing the correct directions of all points
             from the centre.

   zeolite   n.  each of a number of minerals consisting mainly of hydrous
             silicates of calcium, sodium, and aluminium, able to act as
             cation exchangers.  ЬЬzeolitic adj.  [Sw. & G zeolit f. Gk zeo
             boil + -LITE (from their characteristic swelling and fusing
             under the blowpipe)]

   Zeph.     abbr.  Zephaniah (Old Testament).

   zephyr    n.  1 literary a mild gentle wind or breeze.  2 a fine cotton
             fabric.  3 an athlete's thin gauzy jersey.  [F z‚phyr or L
             zephyrus f. Gk zephuros (god of the) west wind]

   Zeppelin  n.  hist.  a German large dirigible airship of the early 20th
             c., orig. for military use.  [Count F. von Zeppelin, Ger. airman
             d. 1917, its first constructor]

   zero      n. & v.  --n.  (pl.  -os) 1 a the figure 0; nought.  b no
             quantity or number; nil.  2 a point on the scale of an
             instrument from which a positive or negative quantity is
             reckoned.  3 (attrib.) having a value of zero; no, not any (zero
             population growth).  4 (in full zero-hour) a the hour at which a
             planned, esp. military, operation is timed to begin.  b a
             crucial moment.  5 the lowest point; a nullity or nonentity.
             --v.tr.  (-oes, -oed) 1 adjust (an instrument etc.) to zero
             point.  2 set the sights of (a gun) for firing.  Ьzero in on 1
             take aim at.  2 focus one's attention on.  zero option a
             disarmament proposal for the total removal of certain types of
             weapons on both sides.  zero-rated on which no value added tax
             is charged.  zero-sum (of a game, political situation, etc.) in
             which whatever is gained by one side is lost by the other so
             that the net change is always zero.  [F z‚ro or It.  zero f.
             OSp. f. Arab.  sifr CIPHER]

   zeroth    adj.  immediately preceding what is regarded as 'first' in a
             series.

   zest      n.  1 piquancy; a stimulating flavour or quality.  2 a keen
             enjoyment or interest.  b (often foll. by for) relish.  c gusto
             (entered into it with zest).  3 a scraping of orange or lemon
             peel as flavouring.  ЬЬzestful adj.  zestfully adv.  zestfulness
             n.  zesty adj.  (zestier, zestiest).  [F zeste orange or lemon
             peel, of unkn. orig.]

   zeta      n.  the sixth letter of the Greek alphabet (Z).  [Gk zeta]

   zetetic   adj.  proceeding by inquiry.  [Gk zetetikos f.  zeteo seek]

   zeugma    n.  a figure of speech using a verb or adjective with two nouns,
             to one of which it is strictly applicable while the word
             appropriate to the other is not used (e.g.  with weeping eyes
             and [sc.  grieving] hearts) (cf.  SYLLEPSIS).  ЬЬzeugmatic adj.
             [L f. Gk zeugma -atos f.  zeugnumi to yoke, zugon yoke]

4.0 zho
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   zho       var. of DZHO.

5.0 zibet...
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   zibet     n.  (US zibeth) 1 an Asian or Indian civet, Viverra zibetha.  2
             its scent.  [med.L zibethum: see CIVET]

   zidovudine
             n.  = AZT.  [chem. name azidothymidine]

   ziff      n.  Austral.  sl.  a beard.  [20th c.: orig. unkn.]

   ziggurat  n.  a rectangular stepped tower in ancient Mesopotamia,
             surmounted by a temple.  [Assyr.  ziqquratu pinnacle]

   zigzag    n., adj., adv., & v.  --n.  1 a line or course having abrupt
             alternate right and left turns.  2 (often in pl.) each of these
             turns.  --adj. having the form of a zigzag; alternating right
             and left.  --adv. with a zigzag course.  --v.intr.  (zigzagged,
             zigzagging) move in a zigzag course.  ЬЬzigzaggedly adv.  [F f.
             G zickzack]

   zilch     n.  esp.  US sl.  nothing.  [20th c.: orig. uncert.]

   zillah    n.  an administrative district in India, containing several
             parganas.  [Hind.  dilah division]

   zillion   n.  colloq.  an indefinite large number.  ЬЬzillionth adj. & n.
             [Z (perh. = unknown quantity) + MILLION]

   zinc      n.  Chem.  a white metallic element occurring naturally as zinc
             blende, and used as a component of brass, in galvanizing sheet
             iron, in electric batteries, and in printing-plates.  °Symb.:
             Zn.  Ьflowers of zinc = zinc oxide.  zinc blende see BLENDE.
             zinc chloride a white crystalline deliquescent solid used as a
             preservative and flux.  zinc oxide a powder used as a white
             pigment and in medicinal ointments.  zinc sulphate a white
             water-soluble compound used as a mordant.  ЬЬzinced adj.  [G
             Zink, of unkn. orig.]

   zinco     n. & v.  --n.  (pl.  -os) = ZINCOGRAPH.  --v.tr. & intr.  (-oes,
             -oed) = ZINCOGRAPH.  [abbr.]

   zincograph
             n. & v.  --n.  1 a zinc plate with a design etched in relief on
             it for printing from.  2 a print taken from this.  --v.  1 tr. &
             intr. etch on zinc.  2 tr. reproduce (a design) in this way.
             ЬЬzincography n.

   zincotype n.  = ZINCOGRAPH.

   zing      n. & v.  colloq.  --n. vigour, energy.  --v.intr. move swiftly
             or with a shrill sound.  ЬЬzingy adj.  (zingier, zingiest).
             [imit.]

   Zingaro   n.  (pl.  Zingari) a gypsy.  [It.]

   zinger    n.  US sl.  an outstanding person or thing.

   zinnia    n.  a composite plant of the genus Zinnia, with showy rayed
             flowers of deep red and other colours.  [J. G.  Zinn, Ger.
             physician and botanist d. 1759]

   Zion      n.  (also Sion) 1 the hill of Jerusalem on which the city of
             David was built.  2 a the Jewish people or religion.  b the
             Christian Church.  3 (in Christian thought) the Kingdom of God
             in Heaven.  [OE f. eccl.L Sion f. Heb.  siy“n]

   Zionism   n.  a movement (orig.) for the reestablishment and (now) the
             development of a Jewish nation in what is now Israel.  ЬЬZionist
             n.

   zip       n. & v.  --n.  1 a light fast sound, as of a bullet passing
             through air.  2 energy, vigour.  3 esp.  Brit.  a (in full
             zip-fastener) a fastening device of two flexible strips with
             interlocking projections closed or opened by pulling a slide
             along them.  b (attrib.) having a zip-fastener (zip bag).  --v.
             (zipped, zipping) 1 tr. & intr. (often foll. by up) fasten with
             a zip-fastener.  2 intr. move with zip or at high speed.
             [imit.]

   Zip code  n.  US a system of postal codes consisting of five-digit
             numbers.  [zone improvement plan]

   zipper    n. & v.  esp.  US --n. a zip-fastener.  --v.tr. (often foll. by
             up) fasten with a zipper.  ЬЬzippered adj.

   zippy     adj.  (zippier, zippiest) colloq.  1 bright, fresh, lively.  2
             fast, speedy.  ЬЬzippily adv.  zippiness n.

   zircon    n.  a zirconium silicate of which some translucent varieties are
             cut into gems (see HYACINTH 4, JARGON(2)).  [G Zirkon: cf.
             JARGON(2)]

   zirconium n.  Chem.  a grey metallic element occurring naturally in zircon
             and used in various industrial applications.  °Symb.: Zr.
             [mod.L f.  ZIRCON + -IUM]

   zit       n.  esp.  US sl.  a pimple.  [20th c.: orig. unkn.]

   zither    n.  a musical instrument consisting of a flat wooden soundbox
             with numerous strings stretched across it, placed horizontally
             and played with the fingers and a plectrum.  ЬЬzitherist n.  [G
             (as CITTERN)]

   zizz      n. & v.  colloq.  --n.  1 a whizzing or buzzing sound.  2 a
             short sleep.  --v.intr.  1 make a whizzing sound.  2 doze or
             sleep.  [imit.]

6.0 zloty
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   zloty     n.  (pl. same or zlotys) the chief monetary unit of Poland.
             [Pol., lit. 'golden']

7.0 Zn
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   Zn        symb.  Chem.  the element zinc.

8.0 zodiac...
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   zodiac    n.  1 a a belt of the heavens limited by lines about 8ш from the
             ecliptic on each side, including all apparent positions of the
             sun, moon, and planets as known to ancient astronomers, and
             divided into twelve equal parts (signs of the zodiac), each
             formerly containing the similarly named constellation but now by
             precession of the equinoxes coinciding with the constellation
             that bears the name of the preceding sign: Aries, Taurus,
             Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius,
             Capricorn(us), Aquarius, Pisces.  b a diagram of these signs.  2
             a complete cycle, circuit, or compass.  [ME f. OF zodiaque f. L
             zodiacus f. Gk zoidiakos f.  zoidion sculptured animal-figure,
             dimin. of zoion animal]

   zodiacal  adj.  of or in the zodiac.  Ьzodiacal light a luminous area of
             sky shaped like a tall triangle occasionally seen in the east
             before sunrise or in the west after sunset, esp.  in the
             Tropics.  [F (as ZODIAC)]

   zoetrope  n.  hist.  an optical toy in the form of a cylinder with a
             series of pictures on the inner surface which give an impression
             of continuous motion when viewed through slits with the cylinder
             rotating.  [irreg. f. Gk zoe life + -tropos turning]

   zoic      adj.  1 of or relating to animals.  2 Geol. (of rock etc.)
             containing fossils; with traces of animal or plant life.  [prob.
             back-form. f.  AZOIC]

   Z”llner's lines
             n.  parallel lines made to appear not parallel by short oblique
             intersecting lines.  [J. K. F.  Z”llner, Ger. physicist d. 1882]

   zollverein
             n.  hist.  a customs union, esp. of German States in the 19th c.
             [G]

   zombie    n.  1 colloq. a dull or apathetic person.  2 a corpse said to be
             revived by witchcraft.  [W.Afr.  zumbi fetish]

   zonation  n.  distribution in zones, esp. (Ecol.) of plants into zones
             characterized by the dominant species.

   zonda     n.  a hot dusty north wind in Argentina.  [Amer. Sp.]

   zone      n. & v.  --n.  1 an area having particular features, properties,
             purpose, or use (danger zone; erogenous zone; smokeless zone).
             2 any well-defined region of more or less beltlike form.  3 a an
             area between two exact or approximate concentric circles.  b a
             part of the surface of a sphere enclosed between two parallel
             planes, or of a cone or cylinder etc., between such planes
             cutting it perpendicularly to the axis.  4 (in full time zone) a
             range of longitudes where a common standard time is used.  5
             Geol.  etc. a range between specified limits of depth, height,
             etc., esp.  a section of strata distinguished by characteristic
             fossils.  6 Geog. any of five divisions of the earth bounded by
             circles parallel to the equator (see FRIGID, TEMPERATE, TORRID).
             7 an encircling band or stripe distinguishable in colour,
             texture, or character from the rest of the object encircled.  8
             archaic a belt or girdle worn round the body.  --v.tr.  1
             encircle as or with a zone.  2 arrange or distribute by zones.
             3 assign as or to a particular area.  ЬЬzonal adj.  zoning n.
             (in sense 3 of v.).  [F zone or L zona girdle f. Gk zone]

   zonk      v. & n.  sl.  --v.  1 tr. hit or strike.  2 (foll. by out) a tr.
             overcome with sleep; intoxicate.  b intr. fall heavily asleep.
             --n. (often as int.) the sound of a blow or heavy impact.
             [imit.]

   zoo       n.  a zoological garden.  [abbr.]

   zoo-      comb. form of animals or animal life.  [Gk zoio- f.  zoion
             animal]

   zoogeography
             n.  the branch of zoology dealing with the geographical
             distribution of animals.  ЬЬzoogeographic adj.  zoogeographical
             adj.  zoogeographically adv.

   zoography n.  descriptive zoology.

   zooid     n.  1 a more or less independent invertebrate organism arising
             by budding or fission.  2 a distinct member of an invertebrate
             colony.  ЬЬzooidal adj.  [formed as ZOO- + -OID]

   zoolatry  n.  the worship of animals.

   zoological
             disp.  adj.  of or relating to zoology.  Ьzoological garden (or
             gardens) a public garden or park with a collection of animals
             for exhibition and study.  ЬЬzoologically adv.

   zoology   disp.  n.  the scientific study of animals, esp. with reference
             to their structure, physiology, classification, and
             distribution.  ЬЬzoologist n.  [mod.L zoologia (as ZOO-, -LOGY)]

   zoom      v. & n.  --v.  1 intr. move quickly, esp. with a buzzing sound.
             2 a intr. cause an aeroplane to mount at high speed and a steep
             angle.  b tr. cause (an aeroplane) to do this.  3 a intr. (of a
             camera) close up rapidly from a long shot to a close-up.  b tr.
             cause (a lens or camera) to do this.  --n.  1 an aeroplane's
             steep climb.  2 a zooming camera shot.  Ьzoom lens a lens
             allowing a camera to zoom by varying the focal length.  [imit.]

   zoomancy  n.  divination from the appearances or behaviour of animals.

   zoomorphic
             adj.  1 dealing with or represented in animal forms.  2 having
             gods of animal form.  ЬЬzoomorphism n.

   zoonosis  n.  any of various diseases which can be transmitted to humans
             from animals.  [ZOO- + Gk nosos disease]

   zoophyte  n.  a plantlike animal, esp. a coral, sea anemone, or sponge.
             ЬЬzoophytic adj.  [Gk zoophuton (as ZOO-, -PHYTE)]

   zooplankton
             n.  plankton consisting of animals.

   zoospore  n.  a spore of fungi, algae, etc. capable of motion.
             ЬЬzoosporic adj.

   zootomy   n.  the dissection or anatomy of animals.

   zoot suit n.  colloq.  a man's suit with a long loose jacket and
             high-waisted tapering trousers.  [rhyming on SUIT]

   zori      n.  (pl.  zoris) a Japanese straw or rubber etc. sandal.  [Jap.]

   zoril     n.  (also zorille) a flesh-eating African mammal, Ictonyx
             striatus, of the skunk and the weasel family.  [F zorille f. Sp.
             zorrilla dimin. of zorro fox]

   Zoroastrian
             adj. & n.  (also Zarathustrian) --adj. of or relating to
             Zoroaster (or Zarathustra) or the dualistic religious system
             taught by him or his followers in the Zend-Avesta, based on the
             concept of a conflict between a spirit of light and good and a
             spirit of darkness and evil.  --n. a follower of Zoroaster.
             ЬЬZoroastrianism n.  [L Zoroastres f. Gk Zoroastres f. Avestan
             Zarathustra, Persian founder of the religion in the 6th c.  BC]

   Zouave    n.  a member of a French light-infantry corps originally formed
             of Algerians and retaining their oriental uniform.  [F f.
             Zouaoua, name of a tribe]

   zounds    int.  archaic expressing surprise or indignation.  [(God)' s
             wounds (i.e. those of Christ on the Cross)]

9.0 ZPG
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   ZPG       abbr.  zero population growth.

10.0 Zr
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   Zr        symb.  Chem.  the element zirconium.

11.0 zucchetto...
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   zucchetto n.  (pl.  -os) a Roman Catholic ecclesiastic's skullcap, black
             for a priest, purple for a bishop, red for a cardinal, and white
             for a pope.  [It.  zucchetta dimin. of zucca gourd, head]

   zucchini  n.  (pl. same or zucchinis) esp.  US & Austral.  a courgette.
             [It., pl. of zucchino dimin. of zucca gourd]

   zugzwang  n.  Chess an obligation to move in one's turn even when this
             must be disadvantageous.  [G f.  Zug move + Zwang compulsion]

   Zulu      n. & adj.  --n.  1 a member of a Black South African people
             orig. inhabiting Zululand and Natal.  2 the language of this
             people.  --adj. of or relating to this people or language.
             [native name]

12.0 zwieback...
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   zwieback  n.  a kind of biscuit rusk or sweet cake toasted in slices.  [G,
             = twice baked]

   Zwinglian n. & adj.  --n. a follower of the Swiss religious reformer U.
             Zwingli (d. 1531).  --adj. of or relating to Zwingli or his
             reforms.

   zwitterion
             n.  a molecule or ion having separate positively and negatively
             charged groups.  [G f.  Zwitter a hybrid]

13.0 zygo...
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


   zygo-     comb. form joining, pairing.  [Gk zugo- f.  zugon yoke]

   zygodactyl
             adj. & n.  --adj. (of a bird) having two toes pointing forward
             and two backward.  --n. such a bird.  ЬЬzygodactylous adj.

   zygoma    n.  (pl.  zygomata) the bony arch of the cheek formed by
             connection of the zygomatic and temporal bones.  [Gk zugoma
             -atos f.  zugon yoke]

   zygomatic adj.  of or relating to the zygoma.  Ьzygomatic arch = ZYGOMA.
             zygomatic bone the bone that forms the prominent part of the
             cheek.

   zygomorphic
             adj.  (also zygomorphous) (of a flower) divisible into similar
             halves only by one plane of symmetry.

   zygospore n.  a thick-walled spore formed by certain fungi.

   zygote    n.  Biol.  a cell formed by the union of two gametes.  ЬЬzygotic
             adj.  zygotically adv.  [Gk zugotos yoked f.  zugoo to yoke]

   zymase    n.  the enzyme fraction in yeast which catalyses the alcoholic
             fermentation of glucose.  [F f. Gk zume leaven]

   zymology  n.  Chem.  the scientific study of fermentation.  ЬЬzymological
             adj.  zymologist n.  [as ZYMASE + -LOGY]

   zymosis   n.  archaic fermentation.  [mod.L f. Gk zumosis (as ZYMASE)]

   zymotic   adj.  archaic of or relating to fermentation.  Ьzymotic disease
             archaic an epidemic, endemic, contagious, infectious, or
             sporadic disease regarded as caused by the multiplication of
             germs introduced from outside.  [Gk zumotikos (as ZYMOSIS)]

   zymurgy   n.  the branch of applied chemistry dealing with the use of
             fermentation in brewing etc.  [Gk zume leaven, after metallurgy]