Definition of Waveson

Babylon English Dictionary
objects which float in the sea after the sinking of a ship, flotsam (Old English Law)
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Waveson Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(n.)
Goods which, after shipwreck, appear floating on the waves, or sea.
  
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
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waveson
wavetable

Waveson Definition from Sports Dictionaries & Glossaries
maritime&shipping&trade
Goods floating on surface of sea after a wreck.