fly
fly
In general, almost any small flying insect. In entomology, the term refers specifically to the approximately 120,000 species of two-winged, or “true,” flies (dipterans). Other insects called flies have wing structures that differ from that of dipterans.
This entry comes from Encyclopædia Britannica Concise.
For the full entry on fly, visit Britannica.com.
Learn More About
Seen & Heard 
What made you look up fly? Please tell us what you were reading, watching or discussing that led you here.
