n. [ Gr. &unr_;&unr_;&unr_;&unr_;&unr_;&unr_;&unr_; ill-smelling (kako`s bad + &unr_;&unr_;&unr_;&unr_;&unr_; to smell) + -yl. ] (Chem.) Alkarsin; a colorless, poisonous, arsenical liquid, As2(CH3)4, spontaneously inflammable and possessing an intensely disagreeable odor. It is the type of a series of compounds analogous to the nitrogen compounds called hydrazines. [ Written also cacodyle, and kakodyl. ] [ 1913 Webster ]

a. (Chem.) Of, pertaining to, or derived from, cacodyl. [ 1913 Webster ]

Cacodylic acid, a white, crystalline, deliquescent substance, (CH3)2AsO.OH, obtained by the oxidation of cacodyl, and having the properties of an exceedingly stable acid; -- also called alkargen. [ 1913 Webster ]