defoliator
UK[ˌdiːˈfəʊliˌeɪtə]US[ˌdiːˈfoʊliˌeɪtər]
n
An agent (such as an insect, chemical, or machine) that causes leaves to fall off plants.
n
A person who removes leaves from plants, especially as part of a military or agricultural operation.
Morpheme Breakdown
de
foli
ator
de
remove
foli
leaf
ator
agent noun suffix
Etymology
The word defoliator is a modern English formation built directly from Latin components. Its core, foli-, descends from the Latin folium, meaning "leaf," which is of uncertain but possibly Proto-Indo-European origin. The prefix de-, meaning "away, off," is attached to indicate the action of removal or stripping away. Finally, the agent suffix -ator is appended to create a noun specifying an entity that performs the act of leaf removal. Thus, the literal construction "leaf-remover" logically evolved to describe both natural pests and human-made agents, such as chemicals or machines, that cause defoliation.
Analysis
Structure: de (remove) + foli (leaf) + ator (agent noun suffix)
de: Latin origin, a prefix meaning "off, away, down, completely," indicating removal or reversal.
foli: Latin origin, from folium meaning "leaf." It functions as the core root denoting the object of the action.
ator: Latin origin, an agent noun suffix (-ator) indicating "a person or thing that does something."
Examples
The gypsy moth caterpillar is a notorious defoliator of oak trees.
During the Vietnam War, the military used Agent Orange as a chemical defoliator.
The farmer used a mechanical defoliator to prepare the cotton plants for harvesting.