- (n.) Any fly resembling a Culex in form or habits; especially, in America, a small biting fly of the genus Simulium and allies, as the buffalo gnat, the black fly, etc.
- (n.) 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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). gnat. Retrieved September 21, 2026, from http://smartdefine.org/gnat/definitions/2012813 |
| Chicago | Webster's. 2011. "gnat" http://smartdefine.org/gnat/definitions/2012813 (accessed September 21, 2026). |
| Harvard | Webster's 2011, gnat, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/gnat/definitions/2012813>. |
| MLA | Webster's. "gnat" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/gnat/definitions/2012813> |