radiopaque

[rey-dee-oh-peyk]

adjective

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

Nearby words

  1. radioneuritis,
  2. radionics,
  3. radionuclide,
  4. radiopacity,
  5. radiopager,
  6. radiopathology,
  7. radiopelvimetry,
  8. radiophare,
  9. radiopharmaceutical,
  10. radiophone

Compare radiolucent.

Origin of radiopaque

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

Related formsra·di·o·pac·i·ty [rey-dee-oh-pas-i-tee] /ˌreɪ di oʊˈpæs ɪ ti/, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for radiopacities

radiopaque

radio-opaque

adjective

not permitting X-rays or other radiation to pass through
Derived Formsradiopacity (ˌreɪdɪəʊˈpæsɪtɪ) or radio-opacity, noun

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

Medicine definitions for radiopacities

radiopaque

[rā′dē-ō-pāk]

adj.

Relatively impenetrable by x-rays or other forms of radiation.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.