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defoliant

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noun de·fo·li·ant \(ˌ)dē-ˈfō-lē-ənt\

Simple Definition of defoliant

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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of defoliant

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

1943

First Known Use of defoliant

1943



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