X-ray picture xray·pic·ture uncommon noun 1. a radiogram made by exposing photographic film to X rays; used in medical diagnosis SynonymsroentgenogramX rayX-ray pictureX-ray photograph Related words Broader terms radiogram Narrower terms angiocardiogramangiogramarteriogramarthrogramencephalogramhysterosalpingogrammammogrammyelogram WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.