First Known Use: 1939
Dictionary
gibberellin
noun gib·ber·el·lin \-ˈre-lən\
Definition of GIBBERELLIN
: any of several growth-regulating plant hormones that promote cell elongation and activity of the cambium, induce parthenocarpy, and stimulate synthesis of nucleic acids and proteins
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Origin of GIBBERELLIN
New Latin Gibberella fujikoroi, fungus from which it was first isolated
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