Copperas

Copperas
Copperas 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}. [1913 Webster]

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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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Synonyms:
, (crystallized)


Look at other dictionaries:

  • copperas — [käp′ər əs] n. [ME & OFr coperose < ML coperosium, prob. < * (aqua) cuprosa, lit., copper (water) < L cupreus, of copper] FERROUS SULFATE …   English World dictionary

  • copperas — Green Green (gr[=e]n), a. [Compar. {Greener} (gr[=e]n [ e]r); superl. {Greenest.}] [OE. grene, AS. gr[=e]ne; akin to D. groen, OS. gr[=o]ni, OHG. gruoni, G. gr[ u]n, Dan. & Sw. gr[ o]n, Icel. gr[ae]nn; fr. the root of E. grow. See {Grow.}] 1.… …   The Collaborative International Dictionary of English

  • copperas — noun ferrous sulfate […] what a change has introduced itself everywhere into human affairs! How human affairs shall now circulate everywhere not healthy life blood in them, but, as it were, a detestable copperas banker’s ink; …   Wiktionary

  • Copperas Cove, Texas —   City   Downtown Copperas Cove …   Wikipedia

  • Copperas Cove Independent School District — is a public school district based in Copperas Cove, Texas (USA). Located in Coryell County, a small portion of the district extends into Bell County. Original Schoolhouse at Avenue E 6th Street on the eastern edge of town circa 1900 …   Wikipedia

  • Copperas Cove — Copperas Cove, TX U.S. city in Texas Population (2000): 29592 Housing Units (2000): 11120 Land area (2000): 13.926162 sq. miles (36.068592 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 13.926162 sq. miles… …   StarDict's U.S. Gazetteer Places

  • Copperas Cove, TX — U.S. city in Texas Population (2000): 29592 Housing Units (2000): 11120 Land area (2000): 13.926162 sq. miles (36.068592 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 13.926162 sq. miles (36.068592 sq. km)… …   StarDict's U.S. Gazetteer Places

  • Copperas Mine Fork — Coordinates: 37°50′30.1″N 82°00′30.1″W / 37.841694°N 82.008361°W / 37.841694; 82.008361 …   Wikipedia

  • Copperas Cove — Original name in latin Copperas Cove Name in other language State code US Continent/City America/Chicago longitude 31.12406 latitude 97.90308 altitude 333 Population 32032 Date 2011 05 14 …   Cities with a population over 1000 database

  • copperas black — noun : a black obtained by the use of logwood with copperas as a mordant in dyeing cloth …   Useful english dictionary

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