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keystroke

[kee-strohk]
noun
  1. one stroke of any key on a machine operated by a keyboard, as a typewriter, computer terminal, or Linotype: I can do 3000 keystrokes an hour.
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Origin of keystroke

First recorded in 1905–10; key1 + stroke1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for keystroke

keystroke

noun
  1. a single operation of the mechanism of a typewriter or keyboard-operated typesetting machine by the action of a key
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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 keystroke

n.

1902, from key (n.1) + stroke (n.). Not in common use until the rise of computers. As a verb, by 1966 (implied in keystroking).

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Online Etymology Dictionary, © 2010 Douglas Harper