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