- roentgenogram, X ray, X-ray picture, X-ray photograph - a radiogram made by exposing photographic film to X rays; used in medical diagnosis
--1 is a kind of radiogram, radiograph, shadowgraph, skiagraph, skiagram
--1 has particulars:angiocardiogram; angiogram; arteriogram; arthrogram; encephalogram, pneumoencephalogram; hysterosalpingogram; mammogram; myelogram; pyelogram; venogram, phlebogram