Note: It is sometimes written in combination; as, copperplate,
coppersmith, copper-colored. Copper finch. (Zoöl.) See Chaffinch.
— Copper glance, or Vitreous copper. (Min.) See Chalcocite.
— Indigo copper. (Min.) See Covelline.
COPPER
Cop"per, v. t. [imp. & p.p. Coppered; p.pr. & vb.n. Coppering.]
Defn: To cover or coat with copper; to sheathe with sheets of copper; as, to copper a ship.
COPPERAS
Cop"per*as, n. Etym: [OE. coperose, F. couperose, fr. (assumed) L.
cuprirosa, equiv. to G. cha`lkanqos, i. e. copper flower, vitriol.
See Copper and Rose.]
Defn: Green vitriol, or sulphate of iron; a green crystalline substance, of an astringent taste, used in making ink, in dyeing black, as a tonic in medicine, etc. It is made on a large scale by the oxidation of iron pyrites. Called also ferrous sulphate.
Note: The term copperas was formerly synonymous with vitriol, and included the green, blue, and white vitriols, or the sulphates of iron, copper, and zinc.
COPPER-BOTTOMED
Cop"per-bot`tomed, a.
Defn: Having a bottom made of copper, as a tin boiler or other vessel, or sheathed with copper, as a ship.
COPPER-FACED
Cop"per-faced`, a.
Defn: Faced or covered with copper; as, copper-faced type.