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.
/ˌfaɪtəʊəˈlɛksɪn/
noun
1.
(botany) any of a group of substances produced by plants that inhibit the growth of pathogenic fungi that infect them
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