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stonefly definition

stone·fly (-flī′)

noun pl. stoneflies -·flies′

any of an order (Plecoptera) of soft-bodied, winged insects whose nymphs live under stones in swift streams: often used as bait in fishing

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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