radiopaque

American

[rey-dee-oh-peyk] / ˌreɪ di oʊˈpeɪk /

adjective

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

radiopaque British

/ ˌreɪdɪəʊˈpeɪk, ˌreɪdɪəʊˈpæsɪtɪ /

adjective

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

radiopacity noun

Etymology

Origin of radiopaque

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

Compare meaning

How does radiopaque compare to similar and commonly confused words? Explore the most common comparisons:

radiopaque vs. radiolucent

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.

Each sponge is also tagged with a radiopaque marker so it can be easily spotted using X-ray and removed at a later date.

From The Verge

Jablonski’s stent is made of a platinum-chromium alloy, which makes it radiopaque, meaning it can be seen by an X-ray machine.

From Washington Post

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023