A soft-bodied beetle related to the glow-worm, the winged male and flightless female of which both have luminescent organs. The light is chiefly produced in flashes and typically functions as a signal between the sexes.
火萤,萤火虫,萤
Family Lampyridae: many species, especially in the tropics, and including the European Luciola lusitanica
Example sentencesExamples
Triggered by dusk's fading daylight, male fireflies lift off into the air and begin their courtship.
Later lab experiments showed that by flashing an artificial light at a firefly you could speed up its rhythm, you could slow it down, make it flash a little later than it would otherwise.
We were guided as we went by millions of fireflies whose flashing marked the banks like landing lights on an airstrip.
The firefly's light is only visible for an instant.
The light from the firefly is an example of phosphorescence.
Definition of firefly in US English:
firefly
nounˈfaɪ(ə)rˌflaɪˈfī(ə)rˌflī
A soft-bodied beetle related to the glowworm, the winged male and flightless female of which both have luminescent organs. The light is chiefly produced as a signal between the sexes, especially in flashes.
火萤,萤火虫,萤
Family Lampyridae: many species
Example sentencesExamples
The firefly's light is only visible for an instant.
Later lab experiments showed that by flashing an artificial light at a firefly you could speed up its rhythm, you could slow it down, make it flash a little later than it would otherwise.
We were guided as we went by millions of fireflies whose flashing marked the banks like landing lights on an airstrip.
Triggered by dusk's fading daylight, male fireflies lift off into the air and begin their courtship.
The light from the firefly is an example of phosphorescence.