gibberellin Hear it!

gibberellin definition

gib·ber·el·lin (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.

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

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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