( BrE ) ( NAmE be·hav·ior·ism ) / bɪˈheɪvjərɪzəm; NAmE / noun
[ U ] ( psychology ) the theory that all human behaviour is learnt by adapting to outside conditions and that learning is not influenced by thoughts and feelings
► be·hav·iour·ist ( BrE ) ( NAmE be·hav·ior·ist ) / -jərɪst; NAmE / noun