a white, crystalline, water-insoluble powder, C9H8O2, usually obtained from cinnamon or synthesized: used chiefly in the manufacture of perfumes and medicines.
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Origin of cinnamic acid
First recorded in 1880–85
Words nearby cinnamic acid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for cinnamic acid
/ (sɪˈnæmɪk) /
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: C 6 H 5 CH:CHCOOH
Word Origin for cinnamic acid
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
Scientific definitions for cinnamic acid
[ sə-năm′ĭk ]
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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.