母ぼ趾し外がい反はん症しょう

noun

hallux valgus; bunion

Medical term for the deformity where the big toe angles toward the second toe, often with a bony bump. Rare in everyday language; the more common term is 外反母趾 (がいはんぼし).

See also: 外反母趾

• 母ぼ趾し外がい反はん症しょうは、足あしの親おや指ゆびが小こ指ゆび側がわに曲まがる病びょう気きです。

  Hallux valgus is a condition where the big toe bends toward the little toe.