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  1. Oxford American Dictionary

    chalcedony

    • IPA[kalˈsedənē]

    美式

    • n.
      a microcrystalline type of quartz occurring in several different forms, including onyx, agate, and jasper.

    • noun: chalcedony, plural noun: chalcedonies

    • 更多解釋

    chalcedony

    • IPA[kalˈsɛdəni]

    英式

    • n.
      a microcrystalline type of quartz occurring in several different forms including onyx and agate.

    Oxford Dictionary