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cyberspace

[sahy-ber-speys]
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noun
  1. the realm of electronic communication.
  2. virtual reality.
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Origin of cyberspace

1980–85; cyber(netics) + space; coined by sci-fi author William Gibson

Word story

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for cyberspace

cyberspace

noun
  1. all of the data stored in a large computer or network represented as a three-dimensional model through which a virtual-reality user can move
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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 cyberspace

n.

1982, often as two words at first, coined by science fiction writer William Gibson (best known for "Neuromancer") and used by him in a short story published in 1982, from cyber- (see cybernetics) + space (n.).

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Online Etymology Dictionary, © 2010 Douglas Harper

cyberspace in Science

cyberspace

[sībər-spās′]
  1. The electronic medium of computer networks, in which online communication takes place.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cyberspace in Culture

cyberspace

The space in which computer transactions occur, particularly transactions between different computers. We say that images and text on the Internet exist in cyberspace, for example. The term is also often used in conjunction with virtual reality, designating the imaginary place where virtual objects exist. For example, if a computer produces a picture of a building that allows the architect to “walk” through and see what a design would look like, the building is said to exist in cyberspace.

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.