'Fireflies' definitions:
Definition of 'Fireflies'
From: GCIDE
- Firefly \Fire"fly`\, n.; pl. Fireflies. (Zool.) Any luminous winged insect, esp. luminous beetles of the family Lampyrid[ae]. [1913 Webster]
- Note: The common American species belong to the genera Photinus (especially Photinus pyralis) and Photuris, in which both sexes are winged. The name is also applied to luminous species of Elaterid[ae]. See Fire beetle. [1913 Webster +PJC]