chalco-

chalco-

or before a vowel

chalc-

combining form
(Chemistry) indicating copper or a copper alloy: chalcopyrite; chalcolithic.
[from Greek khalkos copper]

chalco-

a combining form meaning “copper”: chalcopyrite.
[< Greek chalko-, comb. form of chalkós copper]
References in periodicals archive ?
the company) announced the following developments with respect to the bankruptcy proceedings of its wholly owned subsidiary, Chalco- California Corp.