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radiopaque

American  
[ray-dee-oh-payk] / ˌreɪ di oʊˈpeɪk /

adjective

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


radiopaque British  
/ ˌreɪdɪəʊˈpeɪk /

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.

See Examples For:

If a woman has certain radiopaque dyes injected for gall-bladder X rays, for example, a baby that she bears several years later may have an abnormal level of iodine in the blood.

From Time Magazine Archive

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

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

In some cases, the next thing to do is inject radiopaque dye into the patient's arm or neck arteries and take an arteriogram, a rapid-fire series of X rays.

From Time Magazine Archive

The technique, he reported in a learned paper in 1929, would be valuable for studying the blood pressure inside the heart, and for injecting radiopaque dyes to get X rays of the heart, including abnormalities.

From Time Magazine Archive

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