copperas

listen to the pronunciation of copperas
English - English
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;.

{n} a solution of iron in sulphuric acid
Called also ferrous sulphate
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
{i} sulfate of iron (chemical substance)
copperas

    Hyphenation

    cop·per·as

    Pronunciation

    Etymology

    [ 'kä-p(&-)r&s ] (noun.) 14th century. Middle English coperas, from Old French couperose, from Medieval Latin cuprosa, probably from aqua cuprosa, literally, copper water, from Late Latin cuprum.
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