Exostosis
Pronunciation : Ex`os*to"sis
Part of Speech : n.
Etymology : [NL., fr. Gr. exostose.]
Definition : 1. (Med.)
Defn: Any protuberance of a bone which is not natural; an excrescence or morbid enlargement of a bone. Coxe.
2. (Bot.)
Defn: A knot formed upon or in the wood of trees by disease.
Source : Webster's Unabridged Dictionary, 1913