definitions

ferrous sulfate

noun Chemistry, Pharmacology.

a bluish-green, crystalline, saline-tasting, water-soluble heptahydrated solid, FeSO4⋅7H2O, used chiefly in the manufacture of other iron salts, in water purification, fertilizer, inks, pigments, tanning, photography, and in medicine in the treatment of anemia.

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Nearby words

ferrotitanium, ferrotungsten, ferrotype, ferrous, ferrous oxide, ferrous sulfate, ferrous sulfide, ferrous sulphate, ferrovanadium, ferrozirconium, ferrugination

Origin of ferrous sulfate

First recorded in 1860–65
Also called copperas, green vitriol, iron vitriol, iron sulfate.

Definition for green vitriol (2 of 2)

green vitriol

noun

ferrous sulfate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for green vitriol

green vitriol

noun

another name for ferrous sulphate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for green vitriol (1 of 2)

ferrous sulfate

A bluish-green crystalline compound that is used in sewage and water treatment, and as a pigment and fertilizer. It is also used in medicine to treat iron deficiency. Also called green vitriol. Chemical formula: FeSO4·7H2O.

Science definitions for green vitriol (2 of 2)

green vitriol

See ferrous sulfate.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.