Also found in: Thesaurus, Encyclopedia.
v. de·fo·li·at·ed, de·fo·li·at·ing, de·fo·li·ates
1. To deprive (a plant or a vegetated area, for example) of leaves.
2. To cause the leaves of (a plant or plants) to fall off, especially by the use of chemicals.
To lose foliage.
[Late Latin dēfoliāre, dēfoliāt- : Latin dē-, de- + Latin folium, leaf; see bhel- in Indo-European roots.]
de·fo′li·ate (-ĭt) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.