Van Allen belt
1: a belt of charged particles (resulting from cosmic rays) above the Earth trapped by the Earth's magnetic field
van Beethoven
1: German composer of instrumental music (especially symphonic and chamber music); continued to compose after he lost his hearing (1770-1827) [syn: {Beethoven}, {Ludwig van Beethoven}]
Van Bogaert encephalitis
1: a rare chronic progressive encephalitis caused by the measles virus and occurring primarily in children and young adults; death usually occurs within three years; characterized by primary measles i...
Van Buren
1: 8th President of the United States (1782-1862) [syn: {Martin Van Buren}, {President Van Buren}]
Van de Graaff
1: United States physicist (1901-1967) [syn: {Robert Van de Graaff}, {Robert Jemison Van de Graaff}]
Van de Graaff generator
1: electrical device that produces a high voltage by building up a charge of static electricity [syn: {electrostatic generator}, {electrostatic machine}, {Wimshurst machine}]
van de Velde
1: Belgian architect (1863-1957) [syn: {Henri van de Velde}, {Henri Clemens van de Velde}]
van der Waal's forces
1: relatively weak attraction between neutral atoms and molecules arising from polarization induced in each particle by the presence of other particles
van der Waals
1: Dutch physicist (1837-1923) [syn: {Johannes van der Waals}, {Johannes Diderik van der Waals}]
Van Doren
1: United States writer and literary critic (1885-1950) [syn: {Carl Van Doren}, {Carl Clinton Van Doren}]
Van Dyck
1: Flemish painter of numerous portraits (1599-1641) [syn: {Vandyke}, {Anthony Vandyke}, {Sir Anthony Vandyke}]
van Eyck
1: Flemish painter who was a founder of the Flemish school of painting and who pioneered modern techniques of oil painting (1390-1441) [syn: {Eyck}, {Jan van Eyck}]
van Gogh
1: Dutch postimpressionist painter noted for his use of color (1853-1890) [syn: {Vincent van Gogh}, {Gogh}]
Van Vleck
1: United States physicist (1899-1980) [syn: {John Van Vleck}, {John Hasbrouck Van Vleck}]
Van Wyck Brooks
1: United States literary critic and historian (1886-1963) [syn: {Brooks}]
vanadate
1: a salt or ester of vanadic acid; an anion containing pentavalent vanadium
vanadic acid
1: any of various oxyacids of vanadium; known mostly in the form of its salts [syn: {vanadium pentoxide}]
vanadinite
1: a mineral consisting of chloride and vanadate of lead; a source of vanadium
vanadium
1: a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite [syn: {V}, {atomic number 23}]
vanadium pentoxide
1: any of various oxyacids of vanadium; known mostly in the form of its salts [syn: {vanadic acid}]
vanadium steel
1: steel alloyed with vanadium for greater strength and high-temperature stability
Vanbrugh
1: English architect (1664-1726) [syn: {John Vanbrugh}, {Sir John Vanbrigh}]
Vancocin
1: an antibiotic (trade name Vancocin) effective against some bacterial infections [syn: {vancomycin}]
vancomycin
1: an antibiotic (trade name Vancocin) effective against some bacterial infections [syn: {Vancocin}]
Vancouver
1: English navigator remembered for his exploration of the Pacific coast of North America (1757-1798) [syn: {George Vancouver}] 2: a town in southwestern Washington on the Columbia River across from P...
Vancouver Island
1: an island off southwestern Canada (off the southwestern coast of British Columbia); the largest island off the west coast of North America
vanda
1: any of numerous showy orchids of the genus Vanda having many large flowers in loose racemes
Vanda coerulea
1: famous orchid of northern India having large pale to deep lilac-blue flowers [syn: {blue orchid}]
vandal
1: someone who willfully destroys or defaces property 2: a member of the Germanic people who overran Gaul and Spain and North Africa and sacked Rome in 455
vandalise
1: destroy wantonly, as through acts of vandalism; "vandalize the park" [syn: {vandalize}]
vandalism
1: willful wanton and malicious destruction of the property of others [syn: {hooliganism}, {malicious mischief}]
vandalize
1: destroy wantonly, as through acts of vandalism; "vandalize the park" [syn: {vandalise}]
Vanderbilt
1: United States financier who accumulated great wealth from railroad and shipping businesses (1794-1877) [syn: {Cornelius Vanderbilt}, {Commodore Vanderbilt}]
Vandyke
1: Flemish painter of numerous portraits (1599-1641) [syn: {Van Dyck}, {Anthony Vandyke}, {Sir Anthony Vandyke}] 2: a short pointed beard (named after Anthony Vandyke) [syn: {vandyke beard}]
vandyke beard
1: a short pointed beard (named after Anthony Vandyke) [syn: {vandyke}]
vane
1: flat surface that rotates and pushes against air or water [syn: {blade}] 2: mechanical device attached to an elevated structure; rotates freely to show the direction of the wind [syn: {weathervane}...
vaned
1: (of an arrow) equipped with feathers [syn: {fledged}]
Vanellus
1: Eurasian lapwings [syn: {genus Vanellus}]
Vanern
1: a lake in southwestern Sweden; the largest lake in Sweden [syn: {Lake Vanern}]
Vanessa
1: painted beauty and red admiral [syn: {genus Vanessa}]
Vanessa atalanta
1: of temperate Europe and Asia; having black wings with red and white markings [syn: {red admiral}]
Vanessa Bell
1: English painter; sister of Virginia Woolf; prominent member of the Bloomsbury Group (1879-1961) [syn: {Bell}, {Vanessa Stephen}]
Vanessa Stephen
1: English painter; sister of Virginia Woolf; prominent member of the Bloomsbury Group (1879-1961) [syn: {Bell}, {Vanessa Bell}]
Vanessa virginiensis
1: American butterfly having dark brown wings with white and golden orange spots [syn: {painted beauty}]
vanguard
1: the leading units moving at the head of an army [syn: {van}] 2: any creative group active in the innovation and application of new concepts and techniques in a given field (especially in the arts) ...
Vanguards of Conquest
1: an Islamic extremist group active since the late 1970s; seeks to overthrow the Egyptian government and replace it with an Islamic state; works in small underground cells; "the original Jihad was re...
Vangueria
1: tropical African and Asiatic trees and shrubs having one-seeded fruit [syn: {genus Vangueria}]
Vangueria infausta
1: small deciduous tree of southern Africa having edible fruit [syn: {wild medlar}, {wild medlar tree}, {medlar}]
Vangueria madagascariensis
1: shrubby tree of Madagascar occasionally cultivated for its edible apple-shaped fruit [syn: {Spanish tamarind}]
vanilla
1: any of numerous climbing plants of the genus Vanilla having fleshy leaves and clusters of large waxy highly fragrant white or green or topaz flowers 2: a flavoring prepared from vanilla beans macer...
vanilla bean
1: long bean-like fruit; seeds are used as flavoring
vanilla extract
1: a flavoring prepared from vanilla beans macerated in alcohol (or imitating vanilla beans) [syn: {vanilla}]
vanilla orchid
1: climbing non-ornamental orchid bearing a podlike fruit yielding vanilla beans; widely cultivated from Florida southward throughout tropical America [syn: {Vanilla planifolia}]
Vanilla planifolia
1: climbing non-ornamental orchid bearing a podlike fruit yielding vanilla beans; widely cultivated from Florida southward throughout tropical America [syn: {vanilla orchid}]
vanilla pudding
1: sweet vanilla flavored custard-like pudding usually thickened with flour rather than eggs
vanillin
1: a crystalline compound found in vanilla beans and some balsam resins; used in perfumes and flavorings
Vanir
1: (Norse mythology) race of ancient gods sometimes in conflict with the Aesir
vanish
1: get lost, especially without warning or explanation; "He disappeared without a trace" [syn: {disappear}, {go away}] [ant: {appear}] 2: become invisible or unnoticeable; "The effect vanished when da...
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vanished
1: having passed out of existence; "vanished civilizations"
vanishing
1: quickly going away and passing out of sight; "all I saw was his vanishing back" [syn: {disappearing}] n 1: a sudden or mysterious disappearance 2: suddenly disappearing from sight
vanishing cream
1: a cream used cosmetically (mostly by women) for softening and cleaning the skin [syn: {cold cream}, {coldcream}, {face cream}]
vanishing point
1: the point beyond which something disappears or ceases to exist 2: the appearance of a point on the horizon at which parallel lines converge
vanishingly
1: so as to disappear or approach zero; "errors are vanishingly rare"
vanity
1: feelings of excessive pride [syn: {amour propre}, {conceit}, {self-love}] 2: the quality of being valueless or futile; "he rejected the vanities of the world" [syn: {emptiness}] 3: the trait of bei...
vanity fair
1: a vain and frivolous lifestyle especially in large cities
Vannevar Bush
1: United States electrical engineer who designed an early analogue computer and who led the scientific program of the United States during World War II (1890-1974) [syn: {Bush}]
vanquish
1: come out better in a competition, race, or conflict; "Agassi beat Becker in the tennis championship"; "We beat the competition"; "Harvard defeated Yale in the last football game" [syn: {beat}, {bea...
vanquishable
1: susceptible to being defeated [syn: {beatable}, {vincible}]
vanquisher
1: someone who is victorious by force of arms [syn: {conqueror}]
vantage
1: place or situation affording some advantage (especially a comprehensive view or commanding perspective) 2: the quality of having a superior or more favorable position; "the experience gave him the ...
vantage point
1: a place from which something can be viewed; "from that vantage point he could survey the whole valley" [syn: {viewpoint}]
Vanuatu
1: a volcanic island republic in Melanesia; independent since 1980 [syn: {Republic of Vanuatu}, {New Hebrides}]
Vanzetti
1: United States anarchist (born in Italy) who with Nicola Sacco was convicted of murder and in spite of world-wide protest was executed (1888-1927) [syn: {Bartolomeo Vanzetti}]
vapid
1: lacking taste or flavor or tang; "a bland diet"; "insipid hospital food"; "flavorless supermarket tomatoes"; "vapid beer"; "vapid tea" [syn: {bland}, {flat}, {flavorless}, {flavourless}, {insipid},...
vapidity
1: the quality of being vapid and unsophisticated [syn: {jejunity}, {jejuneness}, {tameness}, {vapidness}]
vapidly
1: in a vapid manner; "a vapidly smiling salesman"
vapidness
1: the quality of being vapid and unsophisticated [syn: {jejunity}, {jejuneness}, {tameness}, {vapidity}]
vapor
1: a visible suspension in the air of particles of some substance [syn: {vapour}] 2: the process of becoming a vapor [syn: {vaporization}, {vaporisation}, {vapour}, {evaporation}]
vapor bath
1: a room that can be filled with steam in which people bathe; `vapour bath' is a British term [syn: {steam bath}, {steam room}, {vapour bath}] 2: you sweat in a steam room before getting a rubdown an...
vapor density
1: the density of a gas relative to the density of hydrogen [syn: {vapour density}]
vapor lock
1: a stoppage in a pipeline caused by gas bubbles (especially a stoppage that develops in hot weather in an internal-combustion engine when fuel in the gas line boils and forms bubbles that block the ...
vapor pressure
1: the pressure exerted by a vapor; often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form) [syn: {vapour pressure}]
vaporific
1: used of substances [syn: {evaporable}, {vaporizable}, {volatilizable}, {volatilisable}] 2: resembling or characteristic of vapor; "vaporous clouds" [syn: {vaporish}, {vapourish}, {vaporous}]
vaporing
1: an instance of boastful talk; "his brag is worse than his fight"; "whenever he won we were exposed to his gasconade" [syn: {brag}, {bragging}, {crow}, {crowing}, {line-shooting}, {gasconade}]
vaporisation
1: the process of becoming a vapor [syn: {vaporization}, {vapor}, {vapour}, {evaporation}] 2: annihilation by vaporizing something [syn: {vaporization}]
vaporise
1: cause to change into a vapor; "The chemist evaporated the water" [syn: {evaporate}] 2: change into a vapor; "The water evaporated in front of our eyes" [syn: {evaporate}] 3: turn into gas; "The sub...
vaporised
1: converted into a gas or vapor [syn: {gasified}, {vaporized}, {volatilized}, {volatilised}]
vaporish
1: resembling or characteristic of vapor; "vaporous clouds" [syn: {vaporific}, {vapourish}, {vaporous}]
vaporizable
1: used of substances [syn: {evaporable}, {vaporific}, {volatilizable}, {volatilisable}]
vaporization
1: annihilation by vaporizing something [syn: {vaporisation}] 2: the process of becoming a vapor [syn: {vaporisation}, {vapor}, {vapour}, {evaporation}]
vaporize
1: turn into gas; "The substance gasified" [syn: {gasify}, {vaporise}, {aerify}] 2: kill with or as if with a burst of gunfire or electric current or as if by shooting; "in this computer game, space t...
vaporized
1: converted into a gas or vapor [syn: {gasified}, {vaporised}, {volatilized}, {volatilised}]
vaporous
1: so thin as to transmit light; "a hat with a diaphanous veil"; "filmy wings of a moth"; "gauzy clouds of dandelion down"; "gossamer cobwebs"; "sheer silk stockings"; "transparent chiffon"; "vaporous...
vapors
1: a state of depression; "he had a bad case of the blues" [syn: {blues}, {blue devils}, {megrims}, {vapours}]
vapour
1: a visible suspension in the air of particles of some substance [syn: {vapor}] 2: the process of becoming a vapor [syn: {vaporization}, {vaporisation}, {vapor}, {evaporation}]
vapour bath
1: a room that can be filled with steam in which people bathe; `vapour bath' is a British term [syn: {steam bath}, {steam room}, {vapor bath}] 2: you sweat in a steam room before getting a rubdown and...
vapour density
1: the density of a gas relative to the density of hydrogen [syn: {vapor density}]
vapour lock
1: a stoppage in a pipeline caused by gas bubbles (especially a stoppage that develops in hot weather in an internal-combustion engine when fuel in the gas line boils and forms bubbles that block the ...
vapour pressure
1: the pressure exerted by a vapor; often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form) [syn: {vapor pressure}]
vapourish
1: resembling or characteristic of vapor; "vaporous clouds" [syn: {vaporific}, {vaporish}, {vaporous}]
vapours
1: a state of depression; "he had a bad case of the blues" [syn: {blues}, {blue devils}, {megrims}, {vapors}]
vaquero
1: local names for a cowboy (`vaquero' is used especially in southwestern and central Texas and `buckaroo' is used especially in California) [syn: {buckaroo}, {buckeroo}]
vaquita
1: a short porpoise that lives in the Gulf of California; an endangered species [syn: {Phocaena sinus}]
var
1: a unit of electrical power in an AC circuit equal to the power dissipated when 1 volt produces a current of 1 ampere [syn: {volt-ampere}]
var.
1: (biology) a group of organisms within a species that differ in trivial ways from similar groups; "a new strain of microorganisms" [syn: {form}, {variant}, {strain}]
vara
1: a Spanish unit of length (about a yard) having different values in different localities
varan
1: any of various large tropical carnivorous lizards of Africa and Asia and Australia; fabled to warn of crocodiles [syn: {monitor}, {monitor lizard}]
Varanidae
1: monitor lizards [syn: {family Varanidae}]
Varanus
1: type and sole extant genus of the Varanidae [syn: {genus Varanus}]
Varanus komodoensis
1: the largest lizard in the world (10 feet); found on Indonesian islands [syn: {Komodo dragon}, {Komodo lizard}, {dragon lizard}, {giant lizard}]
Varese
1: United States composer (born in France) whose music combines dissonance with complex rhythms and the use of electronic techniques (1883-1965) [syn: {Edgard Varese}]
Vargas
1: Brazilian statesman who ruled Brazil as a virtual dictator (1883-1954) [syn: {Getulio Dornelles Vargas}]
Vargas Llosa
1: Peruvian writer (born in 1936) [syn: {Mario Vargas Llosa}, {Jorge Mario Pedro Vargas Llosa}]
variability
1: the quality of being subject to variation [syn: {variableness}, {variance}] [ant: {invariability}, {invariability}] 2: a quality of variability and lack of uniformity [syn: {unevenness}] [ant: {eve...
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