abscisic acid
ab·scis·ic acid
noun \ˌab-ˈsi-zik-, -sik-\Definition of ABSCISIC ACID
: a plant hormone C15H20O4 that is a sesquiterpene widespread in nature and that typically promotes leaf abscission and dormancy and has an inhibitory effect on cell elongation
Origin of ABSCISIC ACID
abscision (variant of abscission) + -ic
First Known Use: 1968
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