Added 10 October 2026 radiology /ˌɹeɪdiˈɒlədʒi/ noun Categories: Mind & IdeasActionsUncommon Words In Latin: radiologia Wiktionary noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about radiology at Wordnik → Where our words come from → The branch of medical science dealing with the medical use of X-rays or other penetrating radiation. (radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation. Origin From radio- + -logy. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: radioscopyradiologistradiographyradiologicradiographradiographicradioactivex-rayradiologicalradiationinterventionalpatient Back to today's word