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cinnamic acid

noun, Chemistry.
a white, crystalline, water-insoluble powder, C 9 H 8 O 2 , usually obtained from cinnamon or synthesized: used chiefly in the manufacture of perfumes and medicines.
Origin of cinnamic acid
First recorded in 1880-85 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for cinnamic acid

cinnamic acid

a white crystalline water-insoluble weak organic acid existing in two isomeric forms; 3-phenylpropenoic acid. The trans- form occurs naturally and its esters are used in perfumery. Formula: C6H5CH:CHCOOH
Word Origin
C19: from cinnam(on) + -ic; from its being found in cinnamon oil
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
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cinnamic acid in Science
cinnamic acid
A white crystalline organic acid obtained from cinnamon or from balsams, or made synthetically. It is used to manufacture perfumery compounds. Chemical formula: C9H8O2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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