from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various aquatic insects of the families Corixidae and Notonectidae, having long oarlike hind legs adapted for swimming.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of various aquatic insects of the family Corixidae that have paddle-shaped hind legs used for swimming.

from the GNU version of the Collaborative International Dictionary of English

  • A boat bug.

from The Century Dictionary and Cyclopedia

  • n. The boat-fly or boat-insect, an aquatic bug of the family Notonectidæ: so called because these insects move in the water like a boat propelled by oars.
  • n. An aquatic bug of the family Corisidæ. All the North American species belong to the genus Corisa, as C. undulata.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. carnivorous aquatic bug having paddle-like hind legs


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