- a gibberellin C18H21O4COOH, produced as a metabolite by the fungus Gibberella fujikuroi, used as a stimulator of plant growth.
Origin of gibberellic acid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a slightly soluble crystalline plant hormone first isolated from the fungus Gibberella fujikuroi : a gibberellin. Formula: C 19 H 22 O 6
C20: from New Latin Gibberella, literally: a little hump, from Latin gibber hump + -ic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- A plant hormone that promotes growth and that is the most important of the gibberellins. It is used commercially to break dormancy of plants, promote germination, and increase or retard the development of fruit. Gibberellic acid is also a metabolic byproduct of certain fungi. Chemical formula: C19H22O6.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.