gibberellic acid

noun
gib·​ber·​el·​lic acid | \ˌji-bə-ˈre-lik- \

Definition of gibberellic acid 

: a crystalline acid C19H22O6 that is a gibberellin used especially in the malting of barley

First Known Use of gibberellic acid

1954, in the meaning defined above

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The first known use of gibberellic acid was in 1954

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