knap

IPA(Pronunciation)

/næp/

Verb

transitive UK dialectal obsolete

(transitive) To shape a brittle material having conchoidal fracture, usually a mineral (flint, obsidian, chert etc.), by breaking away flakes, often forming a sharp edge or point.

Japanese Meaning

（主に石器作りにおいて）燧石や黒曜石などの割れやすい硬い鉱物を、破片を取り除くことで鋭利な刃や尖った先端に整形すること。 / 硬質な材料を打つことで、所定の形状（例えば切れ味の良い刃など）に加工する作業。

What is this buttons?

At the archaeological workshop, she learned how to knap obsidian into razor-sharp arrowheads.

Google Translation / DeepL Translation

考古学のワークショップで、彼女は黒曜石を打って薄片を剥ぎ、かみそりのように鋭い矢じりに仕上げる方法を学んだ。

Details

Sense（1）

(transitive) To shape a brittle material having conchoidal fracture, usually a mineral (flint, obsidian, chert etc.), by breaking away flakes, often forming a sharp edge or point.

Sense（2）