Aquinas, St ThomasA‧qui‧nas, St Thomas /əˈkwaɪnəs/ 
(1225–74) an Italian theologian (=someone who studies religion and religious beliefs) and philosopher whose ideas had an important influence on the Roman Catholic religion
(1225–74) an Italian theologian (=someone who studies religion and religious beliefs) and philosopher whose ideas had an important influence on the Roman Catholic religion