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webworm

American  
[web-wurm] / ˈwɛbˌwɜrm /

noun

  1. the larva of any of several moths, as Hyphantria cunea fall webworm or Loxostege similalis garden webworm, which spins a web over the foliage on which it feeds.

Etymology

Origin of webworm

An Americanism dating back to 1790–1800; web + worm

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.