zeolite
1: any of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassium; formed in cavities in lava flows and in plutonic rocks
zep
1: a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of th...
Zephaniah
1: a Hebrew minor poet of the late 7th century BC [syn: {Sophonias}] 2: an Old Testament book telling the prophecies of Zephaniah which are concerned mainly with the approaching judgement by God upon ...
zephyr
1: a slight wind (usually refreshing); "the breeze was cooled by the lake"; "as he waited he could feel the air on his neck" [syn: {breeze}, {gentle wind}, {air}] 2: (Greek mythology) the Greek god of...
Zeppelin
1: German inventor who designed and built the first rigid motorized dirigible (1838-1917) [syn: {Count Ferdinand von Zeppelin}] 2: a large rigid dirigible designed to carry passengers or bombs [syn: {...
Zeppo
1: United States comedian; one of four brothers who made motion pictures together (1901-1979) [syn: {Marx}, {Herbert Marx}]
zero
1: indicating the absence of any or all units under consideration; "a zero score" [syn: {0}] 2: indicating an initial point or origin 3: of or relating to the null set (a set with no members) 4: havin...
zero coupon bond
1: a bond that is issued at a deep discount from its value at maturity and pays no interest during the life of the bond
zero hour
1: the time set for the start of an action or operation
zero in
1: direct onto a point or target, especially by automatic navigational aids [syn: {range in}, {home in}] 2: adjust (as by firing under test conditions) the zero of (a gun); "He zeroed in his rifle at ...
zero point
1: the quantity that registers a reading of zero on a scale [syn: {zero}]
zero tolerance
1: extreme intolerance of anti-social behavior (usually by an uncompromising application of the law); "he urged zero tolerance for priests who abuse children sexually"
zero-coupon security
1: a security that makes no interest payments but instead is sold at a deep discount from its face value
zero-sum game
1: a game in which the total of all the gains and losses is zero
zero-tolerance policy
1: any policy that allows no exception; "a zero-tolerance policy toward pedophile priests"
zeroth
1: preceding even the first
zeroth law of thermodynamics
1: the law that if two bodies are in thermal equilibrium with a third body then the first two bodies are in thermal equilibrium with each other
zest
1: vigorous and enthusiastic enjoyment [syn: {gusto}, {relish}, {zestfulness}] 2: a tart spiciness [syn: {nip}, {piquance}, {piquancy}, {tang}, {tanginess}] v : add herbs or spices to [syn: {spice}, {...
zestful
1: marked by spirited enjoyment [syn: {yeasty}, {zesty}, {barmy}]
zestfully
1: with zest; "she scrubbed the floors of the new apartment zestfully" [syn: {zestily}]
zestfulness
1: vigorous and enthusiastic enjoyment [syn: {gusto}, {relish}, {zest}]
zestily
1: with zest; "she scrubbed the floors of the new apartment zestfully" [syn: {zestfully}]
Zestril
1: an ACE inhibiting drug (trade names Prinivil or Zestril) administered as an antihypertensive and after heart attacks [syn: {lisinopril}, {Prinivil}]
zesty
1: having an agreeably pungent taste [syn: {piquant}, {savory}, {savoury}, {spicy}] 2: marked by spirited enjoyment [syn: {zestful}, {yeasty}, {barmy}]
zeta
1: the 6th letter of the Greek alphabet
Zetland
1: an archipelago of about 100 islands in the North Atlantic off the north coast of Scotland [syn: {Shetland}, {Shetland Islands}]
zeugma
1: use of a word to govern two or more words though appropriate to only one; "`Mr. Pickwick took his hat and his leave' is an example of zeugma"
Zeus
1: (Greek mythology) the supreme god of ancient Greek mythology; son of Rhea and Cronus whom he dethroned; husband and brother of Hera; brother of Poseidon and Hades; father of many gods; counterpart ...
Zhou
1: the imperial dynasty of China from 1122 to 221 BC; notable for the rise of Confucianism and Taoism [syn: {Zhou dynasty}, {Chou}, {Chou dynasty}, {Chow}, {Chow dynasty}]
Zhou dynasty
1: the imperial dynasty of China from 1122 to 221 BC; notable for the rise of Confucianism and Taoism [syn: {Zhou}, {Chou}, {Chou dynasty}, {Chow}, {Chow dynasty}]
Zhou En-lai
1: Chinese revolutionary and communist leader (1898-1976) [syn: {Chou En-lai}]
Zhu Jiangi
1: a river in southeast China that flows into the South China Sea [syn: {Canton River}, {Chu Kiang}]
Zhuang
1: a branch of the Tai languages
Zhukov
1: Soviet general who during World War II directed the counteroffensive at Stalingrad and relieved Leningrad and captured Berlin (1896-1974) [syn: {Georgi Konstantinovich Zhukov}]
zidovudine
1: an antiviral drug (trade name Retrovir) used in the treatment of AIDS; adverse side effects include liver damage and suppression of the bone marrow [syn: {Retrovir}, {ZDV}, {AZT}]
Ziegfeld
1: United States theatrical producer noted for a series of extravagant revues known as the Ziegfeld Follies (1869-1932) [syn: {Flo Ziegfeld}, {Florenz Ziegfeld}]
Ziegler
1: German chemist honored for his research on polymers (1898-1973) [syn: {Karl Waldemar Ziegler}]
zig
1: an angular shape characterized by sharp turns in alternating directions [syn: {zigzag}, {zag}]
zigadene
1: any of various plants of the genus Zigadenus having glaucous leaves and terminal racemes of mostly white flowers; all are poisonous [syn: {death camas}]
Zigadenus
1: genus of mostly North American poisonous plants; sometimes placed in family Melanthiaceae [syn: {genus Zigadenus}]
Zigadenus elegans
1: plant of western North America having grasslike leaves and greenish-white flowers [syn: {alkali grass}]
Zigadenus glaucus
1: plant of eastern and central North America having creamy white flowers tinged with brown or purple; poisonous especially to grazing animals [syn: {white camas}]
Zigadenus nuttalli
1: a common perennial death camas; Tennessee to Kansas to Texas [syn: {poison camas}]
Zigadenus venenosus
1: plant of western North America to Mexico; poisonous especially to grazing animals [syn: {grassy death camas}, {Zigadenus venenosus gramineus}]
Zigadenus venenosus gramineus
1: plant of western North America to Mexico; poisonous especially to grazing animals [syn: {grassy death camas}, {Zigadenus venenosus}]
ziggurat
1: a rectangular tiered temple or terraced mound erected by the ancient Assyrians and Babylonians [syn: {zikkurat}, {zikurat}]
zigzag
1: having short sharp turns or angles n : an angular shape characterized by sharp turns in alternating directions [syn: {zig}, {zag}] adv : in a zigzag course or on a zigzag path; "birds flew zigzag a...
zikkurat
1: a rectangular tiered temple or terraced mound erected by the ancient Assyrians and Babylonians [syn: {ziggurat}, {zikurat}]
zikurat
1: a rectangular tiered temple or terraced mound erected by the ancient Assyrians and Babylonians [syn: {ziggurat}, {zikkurat}]
zilch
1: a quantity of no importance; "it looked like nothing I had ever seen before"; "reduced to nil all the work we had done"; "we racked up a pathetic goose egg"; "it was all for naught"; "I didn't hear...
zill
1: one of a pair of small metallic cymbals worn on the thumb and middle finger; used in belly dancing in rhythm with the dance
zillion
1: very large indeterminate number; "a zillion people were there" [syn: {a zillion}]
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zillions
1: a very large indefinite number (usually hyperbole) [syn: {millions}, {billions}, {trillions}, {jillions}]
Zimbabwe
1: a landlocked republic in south central Africa formerly called Rhodesia; achieved independence from the United Kingdom in 1980 [syn: {Republic of Zimbabwe}, {Rhodesia}, {Southern Rhodesia}]
Zimbabwean
1: of or relating to or characteristic of Zimbabwe or its people n : a native or inhabitant of Zimbabwe
Zimbalist
1: United States violinist (born in Russia) (1889-1985) [syn: {Efrem Zimbalist}]
Zimmer
1: a light enclosing framework (trade name Zimmer) with rubber castors or wheels and handles; helps invalids or the handicapped or the aged to walk [syn: {walker}, {Zimmer frame}]
Zimmer frame
1: a light enclosing framework (trade name Zimmer) with rubber castors or wheels and handles; helps invalids or the handicapped or the aged to walk [syn: {walker}, {Zimmer}]
Zinacef
1: a cephalosporin that can be given parenterally (trade name Zinacef) or orally by tablets (trade name Ceftin); indicated for infections of the lungs or throat or ears or urinary tract or meninges [s...
zinc
1: a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs as zinc sulphide in zinc bl...
zinc blende
1: an ore that is the chief source of zinc; consists largely of zinc sulfide in crystalline form [syn: {blende}, {sphalerite}]
zinc deficiency
1: a deficiency caused by inadequate zinc in the diet or by liver disease or cystic fibrosis or other diseases
zinc ointment
1: an ointment containing zinc that is used to treat certain skin diseases
zinc oxide
1: oxide of zinc; a white powder used as a pigment or in cosmetics or glass or inks and in zinc ointment [syn: {flowers of zinc}, {philosopher's wool}]
zinc sulfate
1: a colorless water-soluble powder; used as a mordant or to preserve wood or for the electrodeposition of zinc [syn: {zinc sulphate}, {white vitriol}, {zinc vitriol}]
zinc sulphate
1: a colorless water-soluble powder; used as a mordant or to preserve wood or for the electrodeposition of zinc [syn: {zinc sulfate}, {white vitriol}, {zinc vitriol}]
zinc vitriol
1: a colorless water-soluble powder; used as a mordant or to preserve wood or for the electrodeposition of zinc [syn: {zinc sulfate}, {zinc sulphate}, {white vitriol}]
zinc white
1: a white pigment used in hose paints; consists of zinc oxide
Zinfandel
1: small black grape grown chiefly in California; transplanted from Europe 2: dry fruity red wine from California
zing
1: a brief high-pitched buzzing or humming sound; "the zing of the passing bullet" 2: the activeness of an energetic personality [syn: {dynamism}, {pizzazz}, {pizzaz}, {oomph}]
zinger
1: a striking or amusing or caustic remark; "he always greeted me with a new zinger"; "she tried to think of some killer of an argument, a real zinger that would disarm all opposition"
Zingiber
1: tropical Asiatic and Polynesian perennial plants: ginger [syn: {genus Zingiber}]
Zingiber officinale
1: tropical Asian plant widely cultivated for its pungent root; source of gingerroot and powdered ginger [syn: {common ginger}, {Canton ginger}, {stem ginger}]
Zingiberaceae
1: a family of tropical monocotyledonous plants of order Musales [syn: {family Zingiberaceae}, {ginger family}]
Zinjanthropus
1: genus to which Australopithecus boisei was formerly assigned [syn: {genus Zinjanthropus}]
zinkenite
1: a steel gray metallic mineral (a sulphide of lead and antimony)
Zinnemann
1: United States filmmaker (born in Austria) (1907-1997) [syn: {Fred Zinnemann}]
zinnia
1: any of various plants of the genus Zinnia cultivated for their variously and brightly colored flower heads [syn: {old maid}, {old maid flower}]
Zinnia acerosa
1: subshrub with slender woolly stems and long narrow leaves and flower heads with white rays; southern United States and northern Mexico [syn: {white zinnia}]
Zinnia grandiflora
1: subshrub having short leafy stems and numerous small flower heads with nearly round yellow-orange rays; Arizona south to Mexico and east to Kansas [syn: {little golden zinnia}]
Zinsser
1: United States bacteriologist who helped develop immunization against typhus fever (1878-1940) [syn: {Hans Zinsser}]
Zinzendorf
1: German theologian (1700-1760) [syn: {Count Nikolaus Ludwig von Zinzendorf}]
Zion
1: originally a stronghold captured by David (the 2nd king of the Israelites); above it was built a temple and later the name extended to the whole hill; finally it became a synonym for the city of Je...
Zion National Park
1: a national park in Utah having huge canyons and gorges carved by mountain rivers
Zionism
1: a policy for establishing and developing a national homeland for Jews in Palestine 2: a movement of world Jewry that arose late in the 19th century with the aim of creating a Jewish state in Palest...
Zionist
1: relating to or characteristic of Zionism; "the Zionist movement" 2: relating to or characteristic of a supporter of Zionism; "the Zionist leader Theodor Herzl" n : a Jewish supporter of Zionism
Zionist movement
1: a movement of world Jewry that arose late in the 19th century with the aim of creating a Jewish state in Palestine [syn: {Zionism}]
zip
1: a quantity of no importance; "it looked like nothing I had ever seen before"; "reduced to nil all the work we had done"; "we racked up a pathetic goose egg"; "it was all for naught"; "I didn't hear...
zip by
1: move by very quickly [syn: {fly by}, {whisk by}]
zip code
1: a code of letters and digits added to a postal address to aid in the sorting of mail [syn: {postcode}, {postal code}]
zip up
1: close with a zipper; "Zip up your jacket--it's cold" [syn: {zipper}, {zip}] [ant: {unzip}]
zip-fastener
1: a fastener for locking together two toothed edges by means of a sliding tab [syn: {slide fastener}, {zip}, {zipper}]
Ziphiidae
1: beaked whales; in some especially former classifications included in the family Physeteridae [syn: {family Ziphiidae}, {Hyperodontidae}, {family Hyperodontidae}]
zipper
1: a fastener for locking together two toothed edges by means of a sliding tab [syn: {slide fastener}, {zip}, {zip-fastener}] v : close with a zipper; "Zip up your jacket--it's cold" [syn: {zip up}, {...
zippy
1: quick and energetic; "a brisk walk in the park"; "a lively gait"; "a merry chase"; "traveling at a rattling rate"; "a snappy pace"; "a spanking breeze" [syn: {brisk}, {lively}, {merry}, {rattling},...
Zirbanit
1: consort of Marduk [syn: {Sarpanitu}, {Zarpanit}]
zircon
1: a common mineral occurring in small crystals; chief source of zirconium; used as a refractory when opaque and as a gem when transparent [syn: {zirconium silicate}]
zirconia
1: a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes [syn: {zirconium oxide}, {zirconium dioxide}]
zirconium
1: a lustrous gray strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon [syn: {Zr}, {atomic n...
zirconium dioxide
1: a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes [syn: {zirconium oxide}, {zirconia}]
zirconium oxide
1: a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes [syn: {zirconia}, {zirconium dioxide}]
zirconium silicate
1: a common mineral occurring in small crystals; chief source of zirconium; used as a refractory when opaque and as a gem when transparent [syn: {zircon}]
zither
1: a musical stringed instrument with strings stretch over a flat sounding box; it is laid flat and played with a plectrum and with fingers [syn: {cither}, {zithern}]
zithern
1: a musical stringed instrument with strings stretch over a flat sounding box; it is laid flat and played with a plectrum and with fingers [syn: {zither}, {cither}]
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