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Meaning of abscisic acid

ab•scis'ic ac'id

Pronunciation: (ab-sis'ik, -siz'-), [key]
— Biochem. Biochem.
  1. a growth-regulating plant hormone, CHO, that promotes dormancy and the aging and abscission of leaves.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.