morphactin

[mawr-fak-tin]
noun Biochemistry.
any of various synthetic compounds, derived from fluorine and carboxylic acid, that regulate the growth and development of plants.

Origin:
1965–70; probably morph- + act(ive) or act(ivate) + -in2

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It appears the hydrocarbon yields can be increased using ethephon and morphactin growth hormones.
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