最終更新日:2024/07/28
A hard, fine-grained quartz that fractures conchoidally and generates sparks when struck against a material such as steel, because tiny chips of the steel are heated to incandescence and burn in air.
正解を見る
flint
編集履歴(0)
元となった辞書の項目
flint
noun
意味(1)
意味(2)