- any of a number of mostly poisonous chemical by-products of the manufacture of certain herbicides and bactericides, esp the extremely toxic 2,3,7,8-tetrachlorodibenzo-para-dioxin
WordReference Random House Learner's Dictionary of American English © 2019
- Chemistry, Drugsa general name for a family of chemicals called chlorinated hydrocarbons, esp. the poisonous, harmful by-product resulting from the manufacture of certain pesticides.
- Chemistry, Drugsa 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.
- di-1 + ox- + -in2 1965–70