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phytoalexin

[fahy-toh-uh-lek-sin] /ˌfaɪ toʊ əˈlɛk sɪn/
noun, Biochemistry
1.
any of a class of plant compounds that accumulate at the site of invading microorganisms and confer resistance to disease.
Origin
1945-1950
1945-50; phyto- + alexin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for phytoalexin

phytoalexin

/ˌfaɪtəʊəˈlɛksɪn/
noun
1.
(botany) any of a group of substances produced by plants that inhibit the growth of pathogenic fungi that infect them
Word Origin
C20: from phyto- + Greek alexein to ward off
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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