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: any of various usually nocturnal lepidopteran insects with antennae that are often feathery, with a stouter body, duller coloring, and proportionately smaller wings than the butterflies, and with larvae that are plant-eating caterpillars

Examples of moth in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In the Soil Grubs and some types of moth larvae may dig in even deeper and overwinter directly in the soil itself. — Lauren Landers, The Spruce, 6 Nov. 2026 Because many insects despise the smell, these lavender packets also provide pest prevention against fleas, moths, and more. — Stephanie Osmanski, Better Homes & Gardens, 6 Nov. 2026 The moths reproduce in sloth dung, and thus the sloth returning to the ground allows the moths to complete their life cycle. — Chris Elphick, The Conversation, 6 Nov. 2026 According to Pankratov, the real limit isn't how many sensors the moth can grow, but how much of its body both the fluid and the light can reach. — New Atlas, 5 Nov. 2026 See All Example Sentences for moth

Word History

Etymology

Middle English mothe, from Old English moththe; akin to Middle High German motte moth

First Known Use

before the 12th century, in the meaning defined at sense 1

Time Traveler
The first known use of moth was before the 12th century

Browse Nearby Words

Cite this Entry

“Moth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moth. Accessed 12 Nov. 2026.

Kids Definition

: any of a group of night-flying insects that are lepidopterans often with duller coloring, stouter bodies, and smaller wings than the related butterflies and with antennae which are often feathery

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