Agent Orange

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A·gent Or·ange

(ā'jent ōr'anj),
An herbicide and defoliant consisting of (2,4,5-trichlorophenoxy)acetic acid, (2,4-dichlorophenoxy) acetic acid, and dioxin, that was widely used during the Vietnam War; it has been shown to produce residual postexposure carcinogenic and teratogenic effects in humans.

Agent Orange

n.
A herbicide containing trace amounts of the toxic contaminant dioxin, used in the Vietnam War to defoliate areas of forest.

Agent Orange

a U.S. military code name for a mixture of two herbicides, 2,4-D and 2,4,5-T, used as a defoliant during the Vietnam War between 1961 and 1971. The herbicides were unintentionally contaminated with the highly toxic chemical dioxin, which is believed to cause cancer and birth defects in animals and has been established as a cause of chloracne and porphyria cutanea tarda in humans. See also dioxin.
A herbicide contaminated with 1-20 ppm of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), causing chloracne, cancer, altered enzyme levels, porphyrin metabolism, and immune dysfunction; because TCDD stores in adipose tissue, its long-term effects are currently unknown

agent orange

A defoliant preparation containing the very toxic heterocyclic hydrocarbon DIOXIN. Agent orange was widely used in the Vietnam war and is thought to have been the cause of many cases of cancer and of congenital malformations among the exposed population.
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