[waw-ter-bed, wot-er-]


a bed having a liquid-filled rubber or plastic mattress in a rigid, often heated, waterproof frame, and providing a surface that conforms to the sleeper's body in any position.

Nearby words

  1. water-tube boiler,
  2. water-vascular system,
  3. water-wave,
  4. water-witch,
  5. waterage,
  6. waterboard,
  7. waterboarding,
  8. waterborne,
  9. waterbrain,
  10. waterbuck

Origin of waterbed

First recorded in 1835–45; water + bed

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for waterbed

  • Another novel feature was in the method of controlling the depth of submergence when navigating between the surface and waterbed.

    Aircraft and Submarines|Willis J. Abbot.
  • Built to further demonstrate the possibility of navigation over the waterbed of seas or the ocean.

Word Origin and History for waterbed



1610s, "a bed on board a ship," from water (n.1) + bed (n.). As a water-tight mattress filled with water, it is recorded from 1844, originally for invalids. Reinvented c.1970 as a hip furnishing.

Online Etymology Dictionary, © 2010 Douglas Harper