n. Any of several birds, of the families Muscicapidae (in Europe and Asia) and Tyrannidae (in the Americas), that catch insects in flight.
the GNU version of the Collaborative International Dictionary of English
n. One of numerous species of birds that feed upon insects, which they take on the wing.
The Century Dictionary and Cyclopedia
n. One who or that which catches or entraps flies or other winged insects.
n. Specifically, a bird which habitually pursues and captures insects on the wing.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. large American birds that characteristically catch insects on the wing
n. any of a large group of small songbirds that feed on insects taken on the wing
Word Usage
"Sure, some birds have names that describe their activities, such as flycatcher, or gnatcatcher, or their general appearance, such as bluebird, or the place they tend to loiter, such as cowbird."