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sulfate

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sul⋅fate

  [suhl-feyt] noun, verb, -fat⋅ed, -fat⋅ing.
Use sulfate in a Sentence
–noun
1. Chemistry. a salt or ester of sulfuric acid.
–verb (used with object)
2. to combine, treat, or impregnate with sulfuric acid, a sulfate, or sulfates.
3. to convert into a sulfate.
4. Electricity. to form a deposit of lead-sulfate compound on (the lead electrodes of a storage battery).
–verb (used without object)
5. to become sulfated.
Origin:
1780–90; < NL sulphātum. See sulfur, -ate 2

Related forms:
sul⋅fa⋅tion, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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sul·fate   (sŭl'fāt')   
n.  A chemical compound containing the bivalent group SO4.
v.   sul·fat·ed, sul·fat·ing, sul·fates

v.   tr.

  1. To treat or react with sulfuric acid or a sulfate.

  2. Electricity To cause lead sulfate to accumulate on (the plates of a lead-acid storage battery).

v.   intr.
To become sulfated.

[French, from Latin sulfur, sulfur.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

sulfate 
1790 (sulphat), from Fr. sulphate (1787), from Mod.L. sulphatum acidum, from L. sulpur, sulphur (see sulfur) + chemical ending -ate. The spelling with -ph- is standard in Britain.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: 1sul·fate
Variant: or chiefly British sul·phate /'s&l-"fAt/
Function: noun
1 : a salt orester of sulfuric acid
2 : a bivalent group or anion SO4 characteristic of sulfuric acid and the sulfates

Main Entry: 2sulfate
Variant: or chiefly British sulphate
Function: transitive verb
Inflected Forms: sul·fat·ed or chieflyBritish sul·phat·ed; sul·fat·ing or chiefly British sul·phat·ing
: to treat or combine with sulfuric acid or asulfate
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

sulfate sul·fate (sŭl'fāt')
n.

  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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Science Dictionary
sulfate   (sŭl'fāt')  Pronunciation Key 
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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