in the morning x-ray photo produced by angiography
- an X-ray representation of arteries made following the injection of a radiopaque compound
An X-ray picture of bloodstream. The vessels is visible because a contrast dye within all of them obstructs the X-rays from developing an imaging movie.
1933, from angio- + -gram.
the research of arteries after dye has-been injected into them to produce a visual contrast.