biophysics Syllabification: (bi·o·phys·ics)Pronunciation: /ˌbīōˈfiziks/Definition of biophysics noun [treated as singular] the science of the application of the laws of physics to biological phenomena. Derivatives biophysicalPronunciation: /-ˈfizikəl/ adjective biophysicistPronunciation: /-ˈfizəsist/ noun biophysics in other Oxford dictionaries Definition of biophysics in the British & World English dictionary