au·to·ra·di·o·graph 
(ô′tō-rādē-ō-grăf′)
(ô′tō-rādē-ō-grăf′)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 autoradiogram.
au′to·ra′di·o·graphic adj.
au′to·ra′di·ogra·phy (-ŏgrə-fē) n.