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Webster 1913 Edition

(kăl′sē̍-dŏn)

Noun.

[See

A foul vein, like chalcedony, in some precious stones.

Noun.

[See Chalcedony.] With jewelers, a foul vein, like chalcedony, in some precious stones.

See also: Calcedón

calcedon ‎(plural calcedons)