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sea horse definition

sea horse

  1. any of a genus (Hippocampus) of small, semitropical, marine bony fishes of the same family (Syngnathidae, order Gasterosteiformes) as the pipefishes, having a slender prehensile tail, plated body, and a head and foreparts somewhat suggestive of those of a horse: it normally swims in an upright position, and the male incubates the eggs in a pouch in his abdomen
    also written seahorse sea′·horse
  2. walrus
  3. a mythical sea creature, half fish and half horse

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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