‖n. [ NL., fr. Gr. &unr_;; &unr_; out + &unr_; bone: cf. F &unr_; exostose. ] 1. (Med.) Any protuberance of a bone which is not natural; an excrescence or morbid enlargement of a bone. Coxe. [ 1913 Webster ]
2. (Bot.) A knot formed upon or in the wood of trees by disease.