Pronunciation: ˌ ka-k ə - ' di-lik-
Function: noun
Etymology: German Kakodyl the radical As(CH 3 ) 2 , from Greek kak ō d ē s foul-smelling, from kak- + - ō d ē s (akin to Greek ozein to smell) ― more at ODOR
Date: 1850
: a toxic crystalline compound of arsenic C 2 H 7 AsO 2 used especially as an herbicide