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kilo-

1.
a Greek combining form meaning “thousand,” introduced from French in the nomenclature of the metric system (kiloliter); on this model, used in the formation of compound words in other scientific measurements (kilowatt).
Origin
< French, representing Greek chī́lioi a thousand
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for kilo-

kilo-

prefix
1.
denoting 10³ (1000) kilometre, k
2.
(in computer technology) denoting 210 (1024): kilobyte: in computer usage, kilo- is restricted to sizes of storage (e.g. kilobit) when it means 1024; in other computer contexts it retains its usual meaning of 1000
Word Origin
from French, from Greek khilioi thousand
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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Word Origin and History for kilo-

word-forming element meaning "one thousand," introduced in French 1795, when the metric system was officially adopted there, from Greek khilioi "thousand," of unknown origin.

Online Etymology Dictionary, © 2010 Douglas Harper
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kilo- in Medicine

kilo- pref.
One thousand (103): kilogram.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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kilo- in Science
kilo-  
  1. A prefix that means:

  2. One thousand, as in kilowatt, one thousand watts.

  3. 210 (that is, 1,024), which is the power of 2 closest to 1,000, as in kilobyte.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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kilo- in Technology
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Difficulty index for kilo-

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Word Value for kilo

8
9
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