back ‧ spin /ˈbækspɪn/ BrE AmE noun [uncountable]
a turning movement in a ball that has been hit so that the top of the ball turns backwards as the ball travels forwards ⇨ topspin
back ‧ spin /ˈbækspɪn/ BrE AmE noun [uncountable]
a turning movement in a ball that has been hit so that the top of the ball turns backwards as the ball travels forwards ⇨ topspin
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012