radiografía
/radjoɡɾaˈfia/ · B2 · noun · f
radiogram
🩻🦴 radio (rays) + grafía (writing) = writing made with rays
Radiografía joins radio, meaning ray, and grafía, meaning writing or recording. An x-ray is literally a record made by rays. The same -grafía ending appears in fotografía (light writing) and geografía (earth writing).