gibberellic acid

[jib-uh-rel-ik, jib-]
a gibberellin C 18 H 21 O 4 COOH, produced as a metabolite by the fungus Gibberella fujikuroi, used as a stimulator of plant growth.

1950–55; < Neo-Latin Gibberell(a) (Latin gibber hump + -ella -ella) + -ic Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
gibberellic acid (ˌdʒɪbəˈrɛlɪk)
a slightly soluble crystalline plant hormone first isolated from the fungus Gibberella fujikuroi: a gibberellin. Formula: C19H22O6
[C20: from New Latin Gibberella, literally: a little hump, from Latin gibber hump + -ic]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
gibberellic acid   (jĭb'ə-rěl'ĭk)  Pronunciation Key 
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
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