مر

مُرَارٌ ذ [a coll. gen. n.] A kind of tree; (Msb;) a kind of bitter tree; (S, A, K;) or a kind of sour tree; (TA;) of the best and largest of herbs; (K;) when camels eat of it, their lips become contracted, (S, Msb, K,) and their teeth appear: (K:) n. un. with ة. (S.)