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gibberellin

(jib′ər el′in)

noun

one of a group of organic compounds, secreted by an ascomycetous fungus (Gibberella fujikuroi), which behave like plant hormones in stimulating seed germination, growth of roots, leaves, and stems, etc.

Origin: < ModL Gibberella (dim. of L gibber, hump on the back < gibbus: see gib) + -in

See gibberellin in American Heritage Dictionary 4

noun

Any of several plant hormones, such as gibberellic acid, used to promote stem elongation.

Origin:

Origin: From New Latin Gibberella (fujikoroī), the fungus from which gibberellin was first isolated

Origin: , from Latin gibberella

Origin: , feminine diminutive of gibber, hump

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