Quick Definition
κώνωψ, ωπος, ὁ n.m. a gnat, mosquito
Strong's Definition
apparently a derivative of the base of 2759 and a derivative of 3700; a mosquito (from its stinging proboscis)
KJV Usage: gnat
UBS Dictionary of the Greek New Testament
noun, m. | -ωπος
4.48 · Animals · Insects
gnat, mosquito small flying insect; feeds on human or animal blood; regarded as pest The straining of liquids referred to in MAT 23:24 is based on the regulations in Leviticus 11, in which the gnat is the smallest of the unclean creatures and the camel the largest.
For the only occurrence of κώνωψ in the NT, one may use a term which refers to any small flying insect which might fall into a beverage and thus have to be strained out.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
κώνωψ, -wros, 6, a gnat ([Aeschyl.], Hdt., Hippoer., al.) ; of the wine-gnat or midge that is bred in (fermenting and) evaporating wine (Aristot. h. an. 5, 19 [p. 552, 5; cf. Bochart, Hierozoicon, iii. 444; Buztorf, Lex. talm. ἘΠῚ 927 (414" ed. Fischer)]): Mt. xxiii. 24.
Mounce Concise Greek Dictionary
κώνωψ kōnōps 1x
a gnat, mosquito, which is found in wine when becoming sour, Mt. 23:24*
Abbott-Smith Greek Lexicon
* κώνωψ, -ωπος, ὁ, a gnat: Mt 23:24.†
Liddell-Scott-Jones — Greek-English Lexicon
κώνωψ (kōnōps) — gnat. κώνωψ, ωπος, ὁ, gnat, mosquito, [Refs 5th c.BC+]