Upper lip - upper lip

Japanese: 上唇 - じょうしん

〘Noun〙① Upper lip. [Anatomy New Book (1774)]② Part of an insect's mouthparts. A small, plate-like piece that protrudes downward from the head wall and covers the mandible from the front. It is well developed in species with biting-type mouthparts. [Vocabulary of Biology (1884)]③ When the lip of a flower such as an orchid can be distinguished into two parts by a constriction or other means, this refers to the upper part.

Uwa- kuchibiruuha... [Upper lip]

〘 noun 〙 The upper lip. Uwakuchibiro. ⇔ Lower lip. [Nippo Jisho (1603-04)] ※Ka Ginkgo (1896) by Izumi Kyoka, Vol. 8 "It almost covers the upper lip of the humble beard ."

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

〘名〙① 上くちびる。〔解体新書（1774）〕② 昆虫の口器の一部。頭壁から下方に突き出し、大あごを前方からおおう板状の小片。咬み型の口器をもつ種類によく発達。〔生物学語彙（1884）〕③ ラン科などの花の唇弁がくびれなどで二部分に区別できるとき、上方の部分をいう。