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definitions

alderfly

[ awl-der-flahy ]
/ ˈɔl dərˌflaɪ /

noun, plural al·der·flies.

any of several dark-colored neuropterous insects of the family Sialidae, the larvae of which are aquatic and predacious on other aquatic insects.

Nearby words

  1. alder buckthorn,
  2. alder fly,
  3. alder flycatcher,
  4. alder's anomaly,
  5. alder, kurt,
  6. alderman,
  7. aldermanry,
  8. aldermaston,
  9. alderney,
  10. alderperson

Origin of alderfly

First recorded in 1820–30; alder + fly2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019