nano-

nano-

a combining form with the meaning “very small, minute,” used in the formation of compound words (nanoplankton ); in the names of units of measure it has the specific sense “one billionth” (10 -9 ): nanomole; nanosecond.
Also, nanno-;, especially before a vowel, nan-.


Origin:
combining form representing Greek nânos, nánnos dwarf

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Collins
World English Dictionary
nano-
 
combining form
1.  n denoting 10--9: nanosecond
2.  indicating extreme smallness: nanoplankton
 
[from Latin nānus dwarf, from Greek nanos]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

nano- pref.

  1. Extremely small: nanoid.

  2. One-billionth (10-9): nanometer.

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

  2. Very small or at a microscopic level, as in nanotube. In this sense, this prefix is sometimes spelled nanno-, as in nannoplankton.

  3. One billionth, as in nanosecond, one billionth of a second.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang Dictionary

nano-

pref. [SI: the next quantifier below micro-; meaning * 10^(-9)] Smaller than micro-, and used in the same rather loose and connotative way. Thus, one has nanotechnology (coined by hacker K. Eric Drexler) by analogy with `microtechnology'; and a few machine architectures have a `nanocode' level below `microcode'. Tom Duff at Bell Labs has also pointed out that "Pi seconds is a nanocentury". See also quantifiers, pico-, nanoacre, nanobot, nanocomputer, nanofortnight.
FOLDOC
Computing Dictionary

nano- definition


/nan'oh/ 1. A prefix meaning 10^-9 or one billionth.
Used loosely to mean "small", e.g. nanotechnology, or (rarely), following "nanosecond", to mean a short time, e.g. "I'll be with you in a nano".
[Jargon File]
(2002-03-02)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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