English language - Dictionaries X...Oxford English ReferenceBritish 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 X... =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- X(1) n. (also x) (pl. Xs or X's) 1 the twenty-fourth letter of the alphabet. 2 (as a Roman numeral) ten. 3 (usu. x) Algebra the first unknown quantity. 4 Geom. the first coordinate. 5 an unknown or unspecified number or person etc. 6 a cross-shaped symbol esp. used to indicate position (X marks the spot) or incorrectness or to symbolize a kiss or a vote, or as the signature of a person who cannot write. X(2) symb. (of films) classified as suitable for adults only. °Formerly used in the UK to indicate that persons under 18 would not be admitted; it was replaced in 1983 by 18, but is still used in the US. -x suffix forming the plural of many nouns in -u taken from French (beaux; tableaux). [F] 2.0 xanthate... =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- xanthate n. any salt or ester of xanthic acid. xanthic adj. yellowish. Ьxanthic acid any colourless unstable acid containing the -OCS[2]H group. [Gk xanthos yellow] Xanthippe n. (also Xantippe) a shrewish or ill-tempered woman or wife. [name of Socrates' wife] xanthoma n. (pl. xanthomas or xanthomata) Med. 1 a skin disease characterized by irregular yellow patches. 2 such a patch. [as XANTHIC + -OMA] xanthophyll n. any of various oxygen-containing carotenoids associated with chlorophyll, some of which cause the yellow colour of leaves in the autumn. [as XANTHIC + Gk phullon leaf] 3.0 X-chromosome =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- X-chromosome n. a sex chromosome of which the number in female cells is twice that in male cells. [X as an arbitrary label + CHROMOSOME] 4.0 x.d. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- x.d. abbr. ex dividend. 5.0 Xe... =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Xe symb. Chem. the element xenon. xebec n. (also zebec, zebeck) a small three-masted Mediterranean vessel with lateen and usu. some square sails. [alt. (after Sp. xabeque) of F chebec f. It. sciabecco f. Arab. sabak] xeno- comb. form 1 a foreign. b a foreigner. 2 other. [Gk xenos strange, foreign, stranger] xenogamy n. Bot. cross-fertilization. ЬЬxenogamous adj. xenolith n. Geol. an inclusion within an igneous rock mass, usu. derived from the immediately surrounding rock. xenon n. Chem. a heavy colourless odourless inert gaseous element occurring in traces in the atmosphere and used in fluorescent lamps. °Symb.: Xe. [Gk, neut. of xenos strange] xenophobe n. a person given to xenophobia. xenophobia n. a deep dislike of foreigners. ЬЬxenophobic adj. xeranthemum n. a composite plant of the genus Xeranthemum, with dry everlasting composite flowers. [mod.L f. Gk xeros dry + anthemon flower] xeric adj. Ecol. having or characterized by dry conditions. [as XERO- + -IC] xero- comb. form dry. [Gk xeros dry] xeroderma n. any of various diseases characterized by extreme dryness of the skin, esp. ichthyosis. [mod.L (as XERO-, Gk derma skin)] xerograph n. a copy produced by xerography. xerography n. a dry copying process in which black or coloured powder adheres to parts of a surface remaining electrically charged after exposure of the surface to light from an image of the document to be copied. ЬЬxerographic adj. xerographically adv. xerophilous adj. (of a plant) adapted to extremely dry conditions. xerophyte n. (also xerophile) a plant able to grow in very dry conditions, e.g. in a desert. Xerox n. & v. --n. propr. 1 a machine for copying by xerography. 2 a copy made using this machine. --v.tr. (xerox) reproduce by this process. [invented f. XEROGRAPHY] 6.0 Xhosa =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Xhosa n. & adj. --n. 1 (pl. same or Xhosas) a member of a Bantu people of Cape Province, South Africa. 2 the Bantu language of this people, similar to Zulu. --adj. of or relating to this people or language. [native name] 7.0 xi... =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- xi n. the fourteenth letter of the Greek alphabet. [Gk] -xion suffix forming nouns (see -ION) from Latin participial stems in -x- (fluxion). xiphisternum n. Anat. = xiphoid process. [as XIPHOID + STERNUM] xiphoid adj. Biol. sword-shaped. Ьxiphoid process the cartilaginous process at the lower end of the sternum. [Gk xiphoeides f. xiphos sword] 8.0 Xmas =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Xmas n. colloq. = CHRISTMAS. [abbr., with X for the initial chi of Gk Khristos Christ] 9.0 xoanon =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- xoanon n. (pl. xoana) Gk Antiq. a primitive usu. wooden image of a deity supposed to have fallen from heaven. [Gk f. xeo carve] 10.0 X-ray =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- X-ray n. & v. (also x-ray) --n. 1 (in pl.) electromagnetic radiation of short wavelength, able to pass through opaque bodies. 2 an image made by the effect of X-rays on a photographic plate, esp. showing the position of bones etc. by their greater absorption of the rays. --v.tr. photograph, examine, or treat with X-rays. ЬX-ray astronomy the branch of astronomy concerned with the X-ray emissions of celestial bodies. X-ray crystallography the study of crystals and their structure by means of the diffraction of X-rays by the regularly spaced atoms of a crystalline material. X-ray tube a device for generating X-rays by accelerating electrons to high energies and causing them to strike a metal target from which the X-rays are emitted. [transl. of G x-Strahlen (pl.) f. Strahl ray, so called because when discovered in 1895 the nature of the rays was unknown] 11.0 xylem... =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- xylem n. Bot. woody tissue (cf. PHLOEM). [Gk xulon wood] xylene n. Chem. one of three isomeric hydrocarbons formed from benzene by the substitution of two methyl groups, obtained from wood etc. [formed as XYLEM + -ENE] xylo- comb. form wood. [Gk xulon wood] xylocarp n. a hard woody fruit. ЬЬxylocarpous adj. xylograph n. a woodcut or wood-engraving (esp. an early one). xylography n. 1 the (esp. early or primitive) practice of making woodcuts or wood-engravings. 2 the use of wood blocks in printing. Xylonite n. propr. a kind of celluloid. [irreg. f. xyloidin (as XYLO-) + -ITE(1)] xylophagous adj. (of an insect or mollusc) eating, or boring into, wood. xylophone n. a musical instrument of wooden or metal bars graduated in length and struck with a small wooden hammer or hammers. ЬЬxylophonic adj. xylophonist n. [Gk xulon wood + -PHONE] xystus n. (pl. xysti) 1 a covered portico used by athletes in ancient Greece for exercise. 2 Rom. Antiq. a garden walk or terrace. [L f. Gk xustos smooth f. xuo scrape] Разработка программ для сборки Шкафов ВРУ. |