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[waw-ter-bed, wot-er-] /ˈwɔ tərˌbɛd, ˈwɒt ər-/
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.
Origin of waterbed
First recorded in 1835-45; water + bed Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for water bed
Historical Examples
  • A water bed was bought for him; he only had the comfort of it for a single night.

    Walt Whitman in Mickle Street Elizabeth Leavitt Keller
  • A water bed was afterwards purchased, which was let out for a small fee to poor patients, temporarily bed-ridden.

    A History of Horncastle James Conway Walter
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
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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
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