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Meaning of stonefly

stone•fly

Pronunciation: (stōn'flī"), [key]
— pl. -flies.
  1. any of numerous dull-colored primitive aquatic insects of the order Plecoptera, having a distinctive flattened body shape: a major food source for game fish, esp. bass and trout, which makes them popular as models for fishing flies.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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