virology Syllabification: (vi·rol·o·gy)Pronunciation: /vīˈräləjē/Translate virology | into German Definition of virology noun the branch of science that deals with the study of viruses. Derivatives virologicalPronunciation: /ˌvīrəˈläjikəl/ adjective virologically adverb virologistPronunciation: /-jist/ noun virology in other Oxford dictionaries Definition of virology in the British & World English dictionary