Wordnet 3.0
NOUN (1)
1.
a painful swelling of the bursa of the first joint of the big toe;
The Collaborative International Dictionary of English v.0.48:
Bunion \Bun"ion\, n. (Med.)
Same as Bunyon.
[1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Bunyon \Bun"yon\, Bunion \Bun"ion\, n. [Cf. Prov. E. bunny a
small swelling, fr. OF. bugne, It. bugna, bugnone. See
Bun.] (Med.)
An enlargement and inflammation of a small membranous sac
(one of the burs[ae] muscos[ae]), usually occurring on the
first joint of the great toe.
[1913 Webster]
WordNet (r) 3.0 (2006):
bunion
n 1: a painful swelling of the bursa of the first joint of the
big toe