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water cooler

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noun
  1. a container for holding drinking water that is cooled and drawn off by a faucet or spigot.
  2. a drinking fountain in which water is cooled by mechanical refrigeration.

Origin of water cooler

An Americanism dating back to 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for water cooler

water cooler

noun
  1. a device for cooling and dispensing drinking water
modifier water-cooler
  1. informal
    1. indicating the kind of informal conversation among office staff that takes place at such a dispenserwater-cooler conversations
    2. indicating an event, television programme, etc, sufficiently controversial or otherwise noteworthy to provide subject matter for such conversationswater-cooler television; a water-cooler moment
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