abscisic acid(redirected from Abscissin)
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abscisic acid[ab′sis·ik ′as·əd]
C16H20O4 A plant hormone produced by fruits and leaves that promotes abscission and dormancy and retards vegetative growth. Abbreviated ABA. Formerly known as abscisin.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.