D defs.my
Entry 2 senses Webster, 1913

Gnat

/năt/ · IPA /næt/
01 n. A blood-sucking dipterous fly, of the genus Culex, undergoing a metamorphosis in water. The females have a proboscis armed with needlelike …
  1. 1.
    A blood-sucking dipterous fly, of the genus Culex, undergoing a metamorphosis in water. The females have a proboscis armed with needlelike organs for penetrating the skin of animals. These are wanting in the males. In America they are generally called mosquitoes. See Mosquito.(Zool.) See: Mosquito
  2. 2.
    Any fly resembling a Culex in form or habits; esp., in America, a small biting fly of the genus Simulium and allies, as the buffalo gnat, the black fly, etc.
Phrases & compounds
Gnat catcher — one of several species of small American singing birds, of the genus Polioptila, allied to the kinglets.
Gnat flower — the bee flower.
Gnat hawk — the European goatsucker; -- called also gnat owl.
Gnat snapper — a bird that catches gnats.
Gnat strainer — a person ostentatiously punctilious about trifles. Cf. Matt. xxiii. 24. — Matt. xxiii. 24.