noun Chemistry.
a salt or ester of tartaric acid.

1785–95; tartr- (combining form representing tartar) + -ate2

supertartrate, noun
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World English Dictionary
tartrate (ˈtɑːtreɪt)
any salt or ester of tartaric acid

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American Heritage
Medical Dictionary

tartrate tar·trate (tär'trāt')
A salt or an ester of tartaric acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
tartrate   (tär'trāt')  Pronunciation Key 
A salt or ester of tartaric acid, containing the group C4H4O6.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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