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
Recent Examples of gibberellin from the Web
The seed has two hormones: abscisic acid (ABA), which sends the signal to stay dormant, and gibberellin (GA), which initiates germination.
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Origin and Etymology of gibberellin
New Latin Gibberella fujikoroi, fungus from which it was first isolated
First Known Use: 1939See Words from the same year
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Britannica.com: Encyclopedia article about gibberellin
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