Yours, Etc.: Origins and Uses of 8 Sign-Offs


[suhl-feyt] /ˈsʌl feɪt/
Chemistry. a salt or ester of sulfuric acid.
verb (used with object), sulfated, sulfating.
to combine, treat, or impregnate with sulfuric acid, a sulfate, or sulfates.
to convert into a sulfate.
Electricity. to form a deposit of lead-sulfate compound on (the lead electrodes of a storage battery).
verb (used without object), sulfated, sulfating.
to become sulfated.
1780-90; < Neo-Latin sulphātum. See sulfur, -ate2
Related forms
sulfation, noun
supersulfate, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for sulfate
  • Apply aluminum sulfate, which is often packaged expressly for hydrangeas, following label directions.
  • The yellow substance was gypsum, or calcium sulfate dehydrate, a common component of plaster.
  • He knew that microorganisms could live in oxygen-deprived environments by processing things such as sulfate and methane.
  • With the greenish, crystalline look of a pulverized windshield, ferrous sulfate is commonly given to iron-deficient humans.
  • Another teams up with unrelated bacteria species and uses sulfate to convert the greenhouse gas into energy.
  • They have also discovered jarosite, a sulfate that contains water and forms under acidic conditions.
  • He used the beads as an electrode in a cell full of lithium sulfate and water.
  • On the same page of the index he had been reading, he found the answer: dimethyl sulfate.
  • Beneath a bowling ball's urethane shell lies a dense core of polyester infused with calcium carbonate or barium sulfate.
  • And in the yellows that had browned, the team found their culprit in forcing the chromium change: barium sulfate.
Word Origin and History for sulfate

1790 (sulphat), from French sulphate (1787), from Modern Latin sulphatum acidum, from Latin sulpur, sulphur (see sulfur) + chemical ending -ate (3). The spelling with -ph- is standard in Britain.

Online Etymology Dictionary, © 2010 Douglas Harper
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sulfate in Medicine

sulfate sul·fate (sŭl'fāt')

  1. A salt or an ester of sulfuric acid.

  2. The bivalent group SO4.

  3. A chemical compound containing such a group.

v. sul·fat·ed, sul·fat·ing, sul·fates
  1. To treat or react with sulfuric acid or a sulfate.

  2. To become sulfated.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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sulfate in Science
A salt or ester of sulfuric acid, containing the group SO4.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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