a powerful herbicide and defoliant containing trace amounts of dioxin, a toxic impurity suspected of causing serious health problems, including cancer and genetic damage, in some persons exposed to it and birth defects in their offspring: used by U.S. armed forces during the Vietnam War to defoliate jungles.
When To Use Definite vs. Indefinite ArticlesArticles are a unique type of adjectives that indicate which noun (person, place, or thing) you’re talking about. The only definite article in English is the, and it refers to a specific noun. Indefinite articles (a or an) refer to nouns more generally. Indefinite Articles Indefinite articles refer to non-specific nouns. Think “I need a pen” or “I want an orange.” In both cases, we …
Origin of Agent Orange
First recorded in 1965–70; so called from the color of the identifying stripe on the drums in which it was stored
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for agent orange
a highly poisonous herbicide used as a spray for defoliation and crop destruction, esp by US forces during the Vietnam War
Word Origin for Agent Orange
C20: named after the identifying colour stripe on its container
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medicine definitions for agent orange
A herbicide that contains trace amounts of the toxic contaminant dioxin, used in the Vietnam War to defoliate areas of forest.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for agent orange
A mixture of equal amounts of two herbicides known as 2,4-D and 2,4,5-T, and trace amounts of the toxic contaminant dioxin (a byproduct of the manufacture of 2,4,5-T). It was used in the Vietnam War to defoliate areas of forest.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.