stone fly

noun

Definition of stone fly

: any of an order (Plecoptera) of insects with an aquatic carnivorous nymph having gills and an adult having long antennae, two pairs of membranous wings, and usually long cerci

First Known Use of stone fly

15th century, in the meaning defined above

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The first known use of stone fly was in the 15th century

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Cite this Entry

“Stone fly.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/stone%20fly. Accessed 13 December 2019.

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