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fungus gnat

American  

noun

  1. any of several mosquitolike insects of the family Mycetophilidae, the larvae of which feed on fungi or decaying vegetation.

Etymology

Origin of fungus gnat

First recorded in 1880–85

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.