Meaning of fireworm

fire•worm

Pronunciation: (fīr'wûrm"), [key]
— n.
  1. the larva of any of several moths, as Rhopobota naevanawhich feeds on the leaves of cranberries and causes them to wither.
  2. glowworm.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.