- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
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.The Submarine in War and Peace
Word Origin and History for waterbed
Online Etymology Dictionary, © 2010 Douglas Harper