irradiation Syllabification: (ir·ra·di·a·tion)Pronunciation: /iˌrādēˈāSHən/Definition of irradiation noun 1the process or fact of irradiating or being irradiated. 2 Optics the apparent extension of the edges of an illuminated object seen against a dark background. irradiation in other Oxford dictionaries Definition of irradiation in the British & World English dictionary
