[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

British Dictionary definitions for water bed

water bed


a waterproof mattress filled with water
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for water bed



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