bun·ion /ˈbənjən/ 名詞
Bun·ion n. Med. Same as Bunyon.
Bun·yon, Bun·ion n. Med. An enlargement and inflammation of a small membranous sac (one of the bursæ muscosæ), usually occurring on the first joint of the great toe.
n : a painful swelling of the bursa of the first joint of the