az

n. 1. a triterpenoid (C35H44O16) isolated from the seeds of the neem tree (Azadirachta indica), used as an insecticide. [ WordNet 1.5 +PJC ]

n.; pl. Azaleas [ NL., fr. Gr. &unr_; dry, -- so called because supposed to grow best in dry ground. ] (Bot.) A genus of showy flowering shrubs, mostly natives of China or of North America; false honeysuckle. The genus is scarcely distinct from Rhododendron. [ 1913 Webster ]

n. [ F. azerole, the name of the fruit, fr. Ar. az-zo'r&unr_;r: cf. It. azzeruolo, Sp. acerolo. ] (Bot.) The Neapolitan medlar (Cratægus azarolus), a shrub of southern Europe; also, its fruit. [ 1913 Webster ]

n. [ F. azédarac, Sp. acederaque, Pers. āzāddirakht noble tree. ] 1. (Bot.) a handsome tree (Melia azedarach) of the mahogany family, native to Northern India and China, having long clusters of fragrant purple blossoms and small ornamental but inedible yellow fruits. It has been naturalized as a shade tree and is common in the southern United States; -- called also, chinaberry, China tree, Pride of India, Pride of China, and Bead tree.
Syn. -- chinaberry, chinaberry tree, China tree, Persian lilac, pride-of-India, azedarach, Melia azederach, Melia azedarach [ 1913 Webster + WordNet 1.5 ]

2. (Med.) The bark of the roots of the azedarach, used as a cathartic and emetic. [ 1913 Webster ]

n. a country in the Caucuses, formerly an Asian Soviet. [ WordNet 1.5 ]

n. a native or inhabitant of Azerbaijan. [ PJC ]

n. 1. a compound containing the azido group combined with an element or radical. [ WordNet 1.5 ]

n. (Chem.) any chemical compound containing the azido group -N3, such as sodium azide (ionic and inorganic) or ethyl azide (organic and nonionic). [ PJC ]