(definition) by Webster 1913 Tue Dec 21 1999 at 23:32:52

Ex`os*to"sis (?), n. [NL., fr. Gr. ; out + bone: cf. F exostose.]

1. Med.

Any protuberance of a bone which is not natural; an excrescence or morbid enlargement of a bone.

Coxe.

2. Bot.

A knot formed upon or in the wood of trees by disease.

 

© Webster 1913.

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