A bioluminescent larva or a wingless wormlike female of certain insects, especially fireflies and beetles of the family Phengodidae.
tropical American click beetle having bright luminous spots
Part or all of this entry has been imported from the 1913 edition of Webster's Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
Find another word for firefly. In this page you can discover 7 synonyms, antonyms, idiomatic expressions, and related words for firefly, like: glowworm, lightning-bug, stargate, Pyrophorus noctiluca, smallville, daredevil and fire-beetle.