caddis fly

noun

Definition of caddis fly

: any of an order (Trichoptera) of insects with four membranous usually hairy wings, vestigial mouthparts, slender many-jointed antennae, and aquatic larvae — compare caddisworm

First Known Use of caddis fly

1735, in the meaning defined above

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The first known use of caddis fly was in 1735

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Cite this Entry

“Caddis fly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/caddis%20fly. Accessed 19 Jun. 2021.

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More Definitions for caddis fly

caddis fly

noun
cad·​dis fly | \ ˈka-dəs- \

Kids Definition of caddis fly

: an insect that has four wings and a larva which lives in water in a silk case covered especially with bits of wood, gravel, sand, or plant matter

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