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na

[nah, nuh] /nɑ, nə/
adverb
1.
no.
2.
not; in no way; by no means.
conjunction
3.
nor; neither.
Origin
900
before 900; Middle English (north and Scots); in part representing Old English (n(e) not, nor + ā ever; cf. ay1); in part variant of ne; cf. no1

NA

1.
not applicable.
2.
not available.

Na

Symbol, Chemistry
1.
Origin
< Neo-Latin natrium

n/a

1.
no account.
2.
not applicable.

N.A.

1.
National Army.
2.
North America.
3.
not applicable.
4.
Microscopy, numerical aperture.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for na

na1

/nɑː/
determiner
1.
a variant of nae

na2

abbreviation
1.
Namibia

Na

Chemical symbol
1.
sodium
Word Origin
Latin natrium

NA

abbreviation
1.
North America
2.
Netherlands Antilles (international car registration)

nae

/neɪ/
determiner
1.
a Scot word for no1 , not

n/a

abbreviation
1.
not applicable
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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na in Medicine

Na
The symbol for the element sodium.

NA abbr.
Nomina Anatomica (official system for anatomical nomenclature)

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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na in Science
Na  
The symbol for sodium.
sodium
  (sō'dē-əm)   
Symbol Na
A soft, lightweight, silvery-white metallic element of the alkali group that reacts explosively with water. It is the most abundant alkali metal on Earth, occurring especially in common salt. Sodium is very malleable, and its compounds have many important uses in industry. Atomic number 11; atomic weight 22.99; melting point 97.8°C; boiling point 892°C; specific gravity 0.971; valence 1. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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na in Technology

networking
The country code for Namibia.
(1999-01-27)

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

na

Nauru

Na

  1. Nahum
  2. sodium

NA

  1. Narcotics Anonymous
  2. Native American (as in personal ads)
  3. Netherlands Antilles (international vehicle ID)
  4. not allowed
  5. not applicable
  6. not available

n.a.

Latin non allocatur (it is not allowed)

N.A.

North America

N/A

  1. not applicable
  2. not available
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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2
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