Definition of moth
1
: clothes moth
2
: 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
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Merriam-Webster unabridged
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Time Traveler for moth
The first known use of moth was before the 12th century
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