Pronunciation: (dī-ok'sin), [key]
a general name for a family of chlorinated hydrocarbons, C12H4Cl4O2, typically used to refer to one isomer, TCDD, a by-product of pesticide manufacture: a toxic compound that is carcinogenic and teratogenic in certain animals. Also called TCDD Cf. Agent Orange.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.