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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

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