Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A large snakelike marine animal often reported by mariners since antiquity but never positively identified.

from The Century Dictionary.

  • noun A name of Ophichthys gomesii, an eel of the family Ophichthyidæ, found in the West Indies.
  • noun An enormous marine animal of serpentine form, said to have been repeatedly seen at sea.
  • noun In herpetology, a general name of the marine venomous serpents or seasnakes of the family Hydrophidæ.
  • noun A chain of salps linked together.

from the GNU version of the Collaborative International Dictionary of English.

  • (Zoöl.) Any marine snake. See sea snake.
  • (Zoöl.) A large marine animal of unknown nature, often reported to have been seen at sea, but never yet captured.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Any unidentified sea monster, especially one resembling a snake or dragon.

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

  • noun huge creature of the sea resembling a snake or dragon

Etymologies

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  • "4. A chain of salps linked together." --Cent. Dict.

    August 25, 2011