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quintillion - 4 dictionary results

quin⋅til⋅lion

  [kwin-til-yuhn] noun, plural -lions, (as after a numeral) -lion, adjective
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–noun
1. a cardinal number represented in the U.S. by 1 followed by 18 zeros, and in Great Britain by 1 followed by 30 zeros.
–adjective
2. amounting to one quintillion in number.
Origin:
1665–75; < L quīnt(us) fifth + -illion (as in million)

Related forms:
quin⋅til⋅lionth, noun, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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quin·til·lion   (kwĭn-tĭl'yən)   
n.  
  1. The cardinal number equal to 1018.
  2. Chiefly British The cardinal number equal to 1030.

[Latin quīntus, fifth; see penkwe in Indo-European roots + (m)illion.]
quin·til'lion adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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quintillion 
1674, from L. quintus "fifth" + (m)illion. Cf. billion. In Great Britain, the fifth power of a million (1 followed by 30 zeroes); in U.S. the fifth power of a thousand (1 followed by 18 zeroes).
Online Etymology Dictionary, © 2001 Douglas Harper
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quintillion
10^30 in Europe (this is called a nonillion in the United States and Canada).
10^18 in the United States and Canada (this is called a trillion in Europe).
[Collins dictionary].

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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