Agent Orange
noun
: an herbicide widely used as a defoliant in the Vietnam War that is composed of 2,4-D and 2,4,5-T and contains dioxin as a contaminant
Word History
Etymology
so called from the identifying color stripe on its container
First Known Use
1970, in the meaning defined above
Medical Definition
Agent Orange
noun
-ˈär-inj, -ˈär(-ə)nj, -ˈȯr-inj, -ˈȯr(-ə)nj 
: an herbicide widely used as a defoliant in the Vietnam War that is composed of 2,4-D and 2,4,5-T and contains dioxin as a contaminant