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radiopaque

American  
[rey-dee-oh-peyk] / ˌreɪ di oʊˈpeɪk /

adjective

  1. opaque to radiation; visible in x-ray photographs and under fluoroscopy (opposed to radiotransparent).


radiopaque British  
/ ˌreɪdɪəʊˈpeɪk, ˌreɪdɪəʊˈpæsɪtɪ /

adjective

  1. not permitting X-rays or other radiation to pass through

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of radiopaque

First recorded in 1925–30; radi(o)- + opaque

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

To guard against clots, he flushed out the whole artery-vein system with a special saline solution combined with antibiotics, an anticoagulant and a radiopaque dye.

From Time Magazine Archive

Diagnosticians can then take samples of blood for a variety of tests, check pressure inside the ventricle, and inject radiopaque dyes for X rays to reveal abnormal or damaged arteries.

From Time Magazine Archive

A second diagnostic advance comes from use of radiopaque dyes, which are injected into arteries leading to the brain: X rays help to locate obstructions to circulation resulting from thromboses and especially aneurysms.

From Time Magazine Archive

He worked plastic tubes through arm veins into both sides of her heart, injected a radiopaque dye and took X rays to get a clear picture of her narrowed aorta.

From Time Magazine Archive

Injections of radiopaque dye also help X rays to show whether arteries have been displaced or damaged enough to deprive part of the brain of its blood supply.

From Time Magazine Archive

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