noun🔗Share燧石，燧石类矿物。 Massive, usually dull-colored and opaque, quartzite, hornstone, impure chalcedony, or other flint-like mineral."The arrowhead found in the field was made of a dark brown chert. "在田里发现的箭头是用深棕色的燧石做的。geologymineralmaterialsubstanceChat with AIVocabulary GamePractice Reading
noun🔗Share燧石工具，燧石器。 A flint-like tool made from chert."The archaeologist carefully brushed the dirt off the chert she found, recognizing it as a tool used by early humans. "考古学家小心翼翼地刷去她发现的燧石工具上的泥土，认出它是早期人类使用的工具。archaeologygeologymaterialChat with AIVocabulary GamePractice Reading
