nose-blowing
Rare medical or formal term for the act of blowing one's nose. In everyday language, 鼻をかむ is used instead.
In medical books, the term 擤鼻 is sometimes used.
こうび is hardly ever used in everyday conversation.
Mixed kana-kanji spelling that makes the reading clearer, but still very rare.
Compound of 擤 (rare kanji meaning 'to blow one's nose') and 鼻 (nose). The exact historical derivation is uncertain; the term is primarily a technical coinage.