plural moths ˈmȯt͟hz How to pronounce moth (audio) ˈmȯths How to pronounce moth (audio)
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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
mothlike adjective
mothy adjective

Examples of moth in a Sentence

Recent Examples on the Web
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Caterpillars are the larval stages of the insect order Lepidoptera, the butterflies and moths. Bob Holmes, JSTOR Daily, 27 Feb. 2025 Related article Couple finds moth infestation in $40.2 million mansion. Jennifer Hauser, CNN, 15 Feb. 2025 Row covers may be the solution in some cases, while other situations may call for scouting for adult moths, incorporating organic or cultural controls, or deciding when to apply pesticides if desired. Anthony Reardon, Kansas City Star, 7 Feb. 2025 Plus, all cereals, grains, nuts, and crackers can attract weevils or pantry moths once packages are opened. Brandee Gruener, Southern Living, 16 Jan. 2025 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

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Cite this Entry

“Moth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moth. Accessed 6 Mar. 2025.

Kids Definition

moth

noun
plural moths ˈmȯt͟hz How to pronounce moth (audio) ˈmȯths How to pronounce moth (audio)
: 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

More from Merriam-Webster on moth

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