phytoalexin

[ fahy-toh-uh-lek-sin ]

nounBiochemistry.
  1. any of a class of plant compounds that accumulate at the site of invading microorganisms and confer resistance to disease.

Origin of phytoalexin

1
First recorded in 1945–50; phyto- + alexin

Words Nearby phytoalexin

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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

Origin of phytoalexin

1
C20: from phyto- + Greek alexein to ward off

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