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alarm clock

a clock with a bell or buzzer that can be set to sound at a particular time, as to awaken someone.
Origin of alarm clock
First recorded in 1690-1700 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for alarm clock
Contemporary Examples
Historical Examples
  • Why don't you try hangin' an alarm clock in his fore-riggin'?

    Cy Whittaker's Place Joseph C. Lincoln
  • There was no sound in the room but the sound of breathing and the loud ticking of an alarm clock.

    Death of a Spaceman Walter M. Miller
  • Roger was wakened the next morning by the alarm clock in the dining room.

    The Forbidden Trail Honor Willsie
  • You could also set an alarm clock to awaken you at a designated time.

  • Besides, a servant wants an alarm clock to get her up in the morning.

    Once a Week Alan Alexander Milne
British Dictionary definitions for alarm clock

alarm clock

a clock with a mechanism that sounds at a set time: used esp for waking a person up
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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