noun
Dated and sensitive term for cleft lip. Modern medical and everyday language prefers 口唇裂 (こうしんれつ) or 唇裂 (しんれつ). This word is now rarely used and may be considered insensitive.
See also: 口唇裂
昔は「兎唇」と呼ばれたが、今は「口唇裂」と言う。
It used to be called 'iguchi' (harelip), but now it's called 'koushinretsu' (cleft lip).
Modern, neutral medical term for cleft lip. Preferred over the dated and potentially offensive 兎唇.
The kanji 兎唇 literally means 'rabbit lip', reflecting the visual similarity to a rabbit's split upper lip. The reading いぐち is a jukujikun (special kanji reading) not derived from the individual kanji's standard readings.