[aw-tuh-rey-dee-uh-graf, -grahf] 
| a picture revealing the presence of radioactive material, the film being laid directly on the object to be tested. |
[aw-toh-rey-dee-uh-gram] . [aw-tuh-rey-dee-uh-graf-ik] , adjective autoradiograph au·to·ra·di·o·graph (ô'tō-rā'dē-ō-grāf')
n.
An image recorded on a photographic film or plate produced by the radiation emitted from a specimen, such as a section of tissue, that has been treated or injected with a radioactively labeled isotope or that has absorbed or ingested such an isotope. Also called radioautograph.
təˈreɪ