X-ray
noun Date: 1896 1. any of the electromagnetic radiations that have an extremely short wavelength of less than 100 angstroms and have the properties of penetrating various thicknesses of all solids, of producing secondary radiations by impinging on material bodies, and of acting on photographic films and plates as light does 2. a photograph obtained by use of X-rays • X-ray adjective

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • X|ray — «EHKS RAY», noun. U.S. a code name for the letter x, used in transmitting radio messages. X ray, 1. an electromagnetic ray having an extremely short wavelength that can go through substances that ordinary light cannot penetrate; roentgen ray. X… …   Useful english dictionary

  • X ray — Ray Ray, n. [OF. rai, F. rais, fr. L. radius a beam or ray, staff, rod, spoke of a wheel. Cf. {Radius}.] 1. One of a number of lines or parts diverging from a common point or center, like the radii of a circle; as, a star of six rays. [1913… …   The Collaborative International Dictionary of English

  • X-ray — Ray Ray, n. [OF. rai, F. rais, fr. L. radius a beam or ray, staff, rod, spoke of a wheel. Cf. {Radius}.] 1. One of a number of lines or parts diverging from a common point or center, like the radii of a circle; as, a star of six rays. [1913… …   The Collaborative International Dictionary of English

  • X-ray — [eks′rā΄] n. [transl. of Ger x strahl (< x, algebraic symbol for an unknown quantity + strahl, ray): so named by ROENTGEN Wilhelm Konrad (1895), because of its unknown character] 1. a band of electromagnetic radiation with wavelengths between… …   English World dictionary

  • X ray — X ray, X ray X ray([e^]ks r[=a] ), n. [so called by its discoverer because of its enigmatical character, x being an algebraic symbol for an unknown quantity.] (Physics) originally, any of the rays produced when cathode rays strike upon surface of …   The Collaborative International Dictionary of English

  • X-ray — X ray, X ray X ray([e^]ks r[=a] ), n. [so called by its discoverer because of its enigmatical character, x being an algebraic symbol for an unknown quantity.] (Physics) originally, any of the rays produced when cathode rays strike upon surface of …   The Collaborative International Dictionary of English

  • X-ray — X ray1 [ˈeks reı] n [Date: 1800 1900; Origin: Translation of German X strahl, X representing unknown ] 1.) a beam of ↑radiation that can go through solid objects and is used for photographing the inside of the body 2.) a photograph of part of… …   Dictionary of contemporary English

  • X-ray — X rays, X raying, X rayed also x ray 1) N COUNT: usu pl X rays are a type of radiation that can pass through most solid materials. X rays are used by doctors to examine the bones or organs inside your body and are also used at airports to see… …   English dictionary

  • X-ray — X ray1 [ eks ,reı ] noun count * 1. ) a type of RADIATION that is used for looking inside things, for example your body or a suitcase 2. ) a picture of the bones or organs inside someone s body taken using X rays X ray vision someone who has X… …   Usage of the words and phrases in modern English

  • X ray — X ray, X ray X ray([e^]ks r[=a] ), v. t. to examine by means of X rays; to irradiate with X rays. [PJC] …   The Collaborative International Dictionary of English

  • X-ray — X ray, X ray X ray([e^]ks r[=a] ), v. t. to examine by means of X rays; to irradiate with X rays. [PJC] …   The Collaborative International Dictionary of English

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