| 1. | any of certain small flies, esp. the biting gnats or punkies of the family Ceratopogonidae, the midges of the family Chironomidae, and the black flies of the family Simuliidae. |
| 2. | British. mosquito. |
| 3. | strain at a gnat and swallow a camel, to fuss about trifles while ignoring more serious matters. |

gnat (nāt)
n.
Any of various small, biting, two-winged flies, such as a biting midge or black fly.
Gnat language, tool
An Ada compiler written in Ada using the gcc code generator to allow easy porting to a variety of platforms. Gnat is the only Ada compiler that completely implements the Ada standard, including all the annexes.
The compiler is released under the GNU license and is currently maintained by Ada Core Technologies (ACT).
(http://gnat.com/).
(1999-06-24)
Gnat
only in Matt. 23:24, a small two-winged stinging fly of the genus Culex, which includes mosquitoes. Our Lord alludes here to the gnat in a proverbial expression probably in common use, "who strain out the gnat;" the words in the Authorized Version, "strain at a gnat," being a mere typographical error, which has been corrected in the Revised Version. The custom of filtering wine for this purpose was common among the Jews. It was founded on Lev. 11:23. It is supposed that the "lice," Ex. 8:16 (marg. R.V., "sand-flies"), were a species of gnat.