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caddisfly

or cad·dice·fly

[kad-is-flahy]
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noun, plural cad·dis·flies.
  1. any of numerous aquatic insects constituting the order Trichoptera, having two pairs of membranous, often hairy wings and superficially resembling moths.
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Compare caddisworm.

Origin of caddisfly

First recorded in 1780–90; see origin at caddisworm, fly2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for caddisfly

Historical Examples

  • After a while he will cling to some weed near the surface, and spin a chrysalis, from which the caddisfly will break forth.

    Harper's Young People, October 5, 1880

    Various