Open Dictionary
mouse here to listen, click to choose/add more
Location: USA
Source: Learn That Word
Profile URL:

Are you a native English speaker? How do you pronounce this word?

Thank you for contributing!
upload mp3 file or record now it's easy, promised!

{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

adj. - Not transparent to X-rays.

Usage examples (12)
  • A radio-opaque contrast medium has been injected into one of four neck vessels
  • She has radio-opaque dye injected through her cervix into her uterus and all the way up her fallopian tubes.
  • Jammers are of two types: radio-opaque shielding, and active broadcasting.
  • Since barium is radio-opaque, it can sketch the colon in the X-ray, thus helping in the diagnosis of ulcerative colitis. for more
Tutoring comment

Tutoring comment not yet available...

add more
The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google,,, and YouTube,,,,, as well as the generous Creative Commons community.