4. pl. Specifically (Naut.), the boilers in the galley for cooking; as, a ship's coppers.
&fist; Copper is often used adjectively, commonly in the sense of made or consisting of copper, or resembling copper; as, a copper boiler, tube, etc.
All in a hot and copper sky.
Coleridge.
It is sometimes written in combination; as, copperplate, coppersmith, copper- colored.
Copper finch. (Zo÷l.) See Chaffinch. -- Copper glance, or Vitreous copper. (Min.) See Chalcocite. -- Indigo copper. (Min.) See Covelline.
Cop"per, v. t. [imp. & p. p. Coppered (?); p. pr. & vb. n. Coppering.] To cover or coat with copper; to sheathe with sheets of copper; as, to copper a ship.
Cop"per*as (?), n. [OE. coperose, F. couperose, fr. (assumed?) L. cuprirosa, equiv. to G. cha`lkanqos, i. e. copper flower, vitriol. See Copper and Rose.] 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.
&fist; The term copperas was formerly synonymous with vitriol, and included the green, blue, and white vitriols, or the sulphates of iron, copper, and zinc.
Cop"per-bot`tomed (?), a. Having a bottom made of copper, as a tin boiler or other vessel, or sheathed with copper, as a ship.
Cop"per-faced` (?), a.Faced or covered with copper; as, copper-faced type.
Cop"per-fas`tened (?), a.Fastened with copper bolts, as the planks of ships, etc.; as, a copper-fastened ship.
Cop"per*head` (?), n. [From its color.] 1. (Zo÷l.) A poisonous American serpent (Ancistrodon conotortrix), closely allied to the rattlesnake, but without rattles; -- called also copper-belly, and red viper.
2. A nickname applied to a person in the Northern States who sympathized with the South during the Civil War. [U.S.]
Cop"per*ing, n. 1. The act of covering with copper.