Found 2 items, similar to iaa.
English → English (WordNet) Definition: IAA IAA n 1: a plant hormone promoting elongation of stems and roots [syn: indoleacetic acid] 2: Yemen-based terrorist group that supports al-Qaeda's goals; seeks to overthrow the Yemeni government and eliminate United States interests; responsible for bombings and kidnappings and killling Western tourists in Yemen [syn: Islamic Army of Aden , Islamic Army of Aden-Abyan, Aden-Abyan Islamic Army ]
English → English (gcide) Definition: IAA IAA \IAA\ n. Indoleacetic acid, a plant hormone promoting elongation of stems and roots. [Acronym] Syn: indoleacetic acid. [WordNet 1.5] indoleacetic acid \in"dole*a*cet“ic ac”id\ ([i^]n"d[=o]l), n. (Chem., Bot.) A plant hormone (C10H9NO2) recognized as the principle growth regulator in higher plants; called also heteroauxin. Abbreviated IAA. Chemically it is 1H-indole-3-acetic acid. [PJC]