Agent Orange

chemical substance used during the Vietnam War to defoliate trees (caused health problems to soldiers and their children, later found to be carcinogenic)

Agent Orange and "Super Orange" were the nicknames given to a herbicide and defoliant used by the United States Armed Forces in its Herbicidal Warfare program during the Vietnam War.Agent Orange was used from 1961 to 1971 and was by far the most used of the so-called "Rainbow Herbicides" utilized during the program. Degradation of Agent Orange (as well as Agents Purple, Pink, and Green) released dioxins, which have caused health problems for those exposed during the Vietnam War. Agents Blue and White were part of the same program but did not contain dioxins.
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Noun
1. a herbicide used in the Vietnam War to defoliate forest areas
(hypernym) herbicide, weedkiller, weed killer
(substance-meronym) dioxin

A toxic herbicide and defoliant used in the Vietnam conflict, containing 2,4,5-trichlorophen-oxyacetic acid (2,4,5-T) and 2-4 dichlorophenoxyacetic acid (2,4-D) with trace amounts of dioxin.

[USA] AGENTE ARANCIONE [DEFOGLIANTE CHIMICO USATO DAI SOLDATI AMERICANI DURANTE LA GUERRA NEL VIETNAM]