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2017 Word of the Year

arrestant

[uh-res-tuh nt] /əˈrɛs tənt/
noun, Entomology.
1.
a substance that interrupts the normal development of an insect.
Origin of arrestant
1960-1965
First recorded in 1960-65; arrest + -ant
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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