underarm hair; armpit hair
Refers to hair growing in the armpit area. A straightforward body-part term used in everyday conversation.
夏になると腋毛の処理を気にする人が多い。
Many people worry about underarm hair removal in summer.
彼は腋毛を剃るのが面倒だと言っている。
He says shaving his armpit hair is a hassle.
体毛 is a general term for body hair; 腋毛 is specifically armpit hair.
Standard kanji spelling; 腋 is the specific character for armpit.
Common variant using the more general 脇 (side/armpit).
Compound of 腋 (わき, 'armpit') and 毛 (け, 'hair'). The reading わきげ is a straightforward combination.