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Synonyms

fireworm

American  
[fahyuhr-wurm] / ˈfaɪərˌwɜrm /

noun

  1. the larva of any of several moths, as Rhopobota naevana black-headed fireworm, which feeds on the leaves of cranberries and causes them to wither.

  2. glowworm.

Etymology

Origin of fireworm

First recorded in 1560–70; fire + 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.