cleft 
/ˈklɛft/ noun
plural clefts /ˈklɛft/ noun [count] 1 : a narrow space in the surface of something
▪ The river begins as a trickle of water from a cleft in the rock. 2 : a narrow area that looks like a small dent in someone's chin
▪ He has a distinctive cleft in his chin.
▪ The river begins as a trickle of water from a cleft in the rock.
▪ He has a distinctive cleft in his chin.
— cleft adjective
▪ The plant has deeply cleft leaves. ▪ a cleft chin
▪ The plant has deeply cleft leaves. ▪ a cleft chin
