X-rays cannot penetrate things that are radiopaque (opaque to X-ray). Radiopaque structures appear white on exposed X-ray film.
RADIOPAQUE
Meaning of RADIOPAQUE in English
English dictionary of medicine. Английский словарь медицины. 2012
X-rays cannot penetrate things that are radiopaque (opaque to X-ray). Radiopaque structures appear white on exposed X-ray film.
English dictionary of medicine. Английский словарь медицины. 2012