adjective Date: circa 1923 being opaque to various forms of radiation (as X-rays)

New Collegiate Dictionary. 2001.

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  • radiopaque — [rā΄dē ō pāk′] adj. [ RADIO + (O)PAQUE] not allowing the passage of X rays, gamma rays, or other forms of radiant energy radiopacity [rā΄dēō pas′ə tē] n …   English World dictionary

  • Radiopaque — Anything that does not let X rays or other types of radiation penetrate. Radiopaque objects block radiation. They are opaque to radiation. A metal object, for example, is typically radiopaque. If a child swallows a coin and it goes down into the… …   Medical dictionary

  • radiopaque — adj. having the property of absorbing, and therefore being opaque to, X rays. Radiopacity increases with atomic weight. Radiopaque materials, such as those containing iodine or barium, are used as contrast media in radiography. Metallic foreign… …   The new mediacal dictionary

  • radiopaque — radiopacity /ray dee oh pas i tee/, n. /ray dee oh payk /, adj. opaque to radiation; visible in x ray photographs and under fluoroscopy (opposed to radiotransparent). Cf. radiolucent. [1925 30; RADI(O) + OPAQUE] * * * …   Universalium

  • radiopaque — adjective impenetrable to X rays and other radiation Ant: radiolucent See Also: radiopacity …   Wiktionary

  • radiopaque — reɪdɪəʊ peɪk adj. impermeable to radiation, not allowing radiation to pass through …   English contemporary dictionary

  • radiopaque — [ˌreɪdɪəʊ peɪk] (also radio opaque) adjective opaque to X rays. Derivatives radiopacity noun …   English new terms dictionary

  • radiopaque — ra·di·opaque …   English syllables

  • radiopaque — ra•di•o•paque [[t]ˌreɪ di oʊˈpeɪk[/t]] adj. med visible in x ray photographs and under fluoroscopy • Etymology: 1925–30 ra di•o•pac′i•ty ˈpæs ɪ ti n …   From formal English to slang

  • radiopaque — /ˌreɪdioʊˈpeɪk/ (say .raydeeoh payk) adjective opaque to radiation, hence, visible in X ray photographs and under fluoroscopy. Also, radio opaque. –radiopacity /ˌreɪdioʊˈpæsəti/ (say .raydeeoh pasuhtee), noun …   Australian English dictionary

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