rainbow herbicide

noun

Any of a group of herbicides used by the United States military in Southeast Asia during the Vietnam War, the best-known and mostly widely used being Agent Orange.

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Meanings

nounrainbow herbicide (plural rainbow herbicides)

plural rainbow herbicides

  1. Any of a group of herbicides used by the United States military in Southeast Asia during the Vietnam War, the best-known and mostly widely used being Agent Orange.

Origin

From the colours assigned to them as code names.

Full word history & related roots →
Cite this entry
APA

rainbow herbicide. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/rainbow%20herbicide

MLA

“rainbow herbicide.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rainbow%20herbicide. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “rainbow herbicide,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/rainbow%20herbicide.

Source: rainbow herbicide on Wiktionary, CC BY-SA 4.0.