flycatcher noun3 •Any of many kinds of birds of the family Muscicapidae, of Africa, Europe, and Asia, that catch insects in flight; an Old World flycatcher. •Any of many kinds of similar birds of various families, such as Tyrannidae (the New World flycatchers of the Americas), Tityridae, Stenostiridae, Monarchidae, Petroicidae, etc. •A device for catching flies.Stewart appeared anxious to get all information in connection with a fly-catcher on the counter. — 1883 formsflycatchers