firefly
1. [ noun ] (zoology) tropical American click beetle having bright luminous spots
Synonyms: Pyrophorus_noctiluca fire_beetle
Related terms: elaterid_beetle Pyrophorus
2. [ noun ] (zoology) nocturnal beetle common in warm regions having luminescent abdominal organs
Synonyms: lightning_bug
Related terms: beetle glowworm Lampyridae
Similar spelling:   fireplug
  fireplace
  fireball