noun \(ˌ)dē-ˈfō-lē-ənt\

: a chemical that is sprayed on plants to make their leaves fall off

Full Definition of DEFOLIANT

:  a chemical spray or dust applied to plants in order to cause the leaves to drop off prematurely

First Known Use of DEFOLIANT



noun    (Concise Encyclopedia)

Chemical dust or spray applied to plants to cause their leaves to drop off prematurely. Defoliants sometimes are applied to crop plants such as cotton to facilitate harvesting. They have also been used in warfare to eliminate enemy food crops and potential areas of concealment (as in the Vietnam War). See also Agent Orange.


Next Word in the Dictionary: defoliate
Previous Word in the Dictionary: defog
All Words Near: defoliant

Seen & Heard

What made you want to look up defoliant? Please tell us where you read or heard it (including the quote, if possible).