Definition of chalcedony
: a translucent variety of quartz of various colors and waxy luster
chalcedonicplay \ˌkal-sə-ˈdä-nik\ adjective
Origin and Etymology of chalcedony
Middle English calcedonie, a precious stone, from Anglo-French, from Late Latin chalcedonius, from Greek Chalkēdōn Chalcedon
First Known Use: 13th century
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