noun🔗ShareMassive, 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. "geologymineralmaterialsubstanceChat with AIVocabulary GamePractice Reading
noun🔗ShareA 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. "archaeologygeologymaterialChat with AIVocabulary GamePractice Reading
