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arrestant

American

[uh-res-tuhnt] / əˈrɛs tənt /

noun

Entomology.

a substance that interrupts the normal development of an insect.

Etymology

Origin of arrestant

First recorded in 1960–65; arrest + -ant

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.