glowworm noun2 •The larva or wingless grub-like female of a beetle from the families Phengodidae or Lampyridae that gives out a green light from its abdomen.The glowworm shows the matin to be near And ’gins to pale his uneffectual fire. Adieu, adieu, adieu! Remember me. — 1599 •(Australia, New-Zealand) A carnivorous gnat larva in the keroplatid genus Arachnocampa that spins threads to capture insects attracted by its glow. formsglowworms
