1. a small two-winged fly that is often seen in swarms near water or marshy areas where it breeds.
▪ any of a number of small flies whose larvae can be pests of plants, typically producing galls or damaging leaves.
2. a small person.informal
Word OriginOld Englishmycg(e), of Germanic origin; related to Dutch mug and German Mücke, from an Indo-European root shared by Latin musca and Greek muia ‘fly’.
