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glassworm

American  
[glas-wurm, glahs-] / ˈglæsˌwɜrm, ˈglɑs- /

noun

  1. arrowworm.

Etymology

Origin of glassworm

First recorded in 1545–55; glass + 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.