abscisic acid
Also found in: Dictionary, Medical, Acronyms, Wikipedia.
Related to abscisic acid: auxin, Gibberellins
abscisic acid
[ab′sis·ik ′as·əd] (biochemistry)
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.