copperas

English

Etymology

You can help Wiktionary by providing a proper etymology. French couperose, perhaps from Latin cupri rosa, "rose of copper".

Noun

copperas (usually uncountable, plural copperases)

  1. iron(II) sulfate.
    • 1843, Thomas Carlyle, Past and Present, book 2, ch. 6, Monk Samson
      […] 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;

Translations

Further reading

  • Copperas” in David Barthelmy, Webmineral Mineralogy Database, 1997–.
  • copperas”, in Mindat.org, Hudson Institute of Mineralogy, accessed 29 August 2016.
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