phys ‧ ics S3 /ˈfɪzɪks/ BrE AmE noun [uncountable]
[ Date: 1400-1500 ; Language: Latin ; Origin: physica , from Greek , from physikos 'of nature' , from physis 'growth, nature' ]
the science concerned with the study of physical objects and substances, and of natural forces such as light, heat, and movement