chalcedony
Pronunciation: /kalˈsɛdəni/
Definition of chalcedony
noun ( plural chalcedonies)
Derivatives
Pronunciation: /ˌkalsɪˈdɒnɪk/
adjective
Origin:
late Middle English: from Latin calcedonius, chalcedonius (often believed to mean 'stone of Chalcedon', but this is doubtful), from Greek khalkēdōn