noun Biochemistry.
the salt of fumaric acid, a key chemical intermediate in the Krebs cycle.

1860–65; fumar(ic acid) + -ate2

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fumarate   (fy'mə-rāt')  Pronunciation Key 
A salt or ester of fumaric acid, in which one or both of the hydrogen atoms in the carboxyl groups of the fumaric acid have been replaced with another element or group.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Fumarate reductase catalyzes the opposite reaction, reducing fumarate to succinate in anaerobic bacterial respiration.
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