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bagworm

[ bag-wurm ]
/ ˈbægˌwɜrm /
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noun

any moth of the family Psychidae in its caterpillar phase, in which it wraps itself in a bag of silk, leaves, etc.

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Origin of bagworm

An Americanism dating back to 1860–65; bag + worm
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
  • My trees are troubled with tent-caterpillar, bagworm and roundhead borer.

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British Dictionary definitions for bagworm

bagworm
/ (ˈbæɡˌwɜːm) /

noun

the larva of moths of the family Psychidae, which forms a protective case of silk covered with grass, leaves, etc
bagworm moth any moth of the family Psychidae
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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