BUNION

bunion

(noun) a painful swelling of the bursa of the first joint of the big toe

Source: WordNet® 3.1

Etymology

Noun

bunion (plural bunions)

(pathology) A bump or bulge on the first joint of the big toe caused by the swelling of a sac of fluid under the skin.

(colloquial, by extension) Hallux valgus, deviation of the big toe from its normal position towards the other toes, the prime cause for the swelling of its first joint.

Source: Wiktionary

Bun"ion, n. (Med.)

Definition: Same as Bunyon.

Bun"yon, Bun"ion, n. Etym: [Cf. Prov. E. bunny a small swelling, fr. OF. bugne, It. bugna, bugnone. See Bun.] (Med.)

Definition: An enlargement and inflammation of a small membranous sac (one of the bursæ muscosæ), usually occurring on the first joint of the great toe.

Source: Webster’s Unabridged Dictionary 1913 Edition