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na

[nah, nuh] /nɑ, nə/ Chiefly Scot.
adverb
1.
no1 .
2.
not; in no way; by no means.
conjunction
3.
nor; neither.
Origin of na
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

Symbol, Chemistry.
1.
Origin
From the New Latin word natrium

NA

1.
not applicable.
2.
not available.

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. 2017.
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Examples from the Web for na
Contemporary Examples
Historical Examples
  • He shook his head, grunting, "na—I don't know naught about t' shoals."

  • There is neither contribution nor tax, (na mal na threth) which we ought to pay.

    Y Gododin Aneurin
  • Some other simpering thing, na doot-they're all alike these days.

    The Christian Hall Caine
  • "That Wilson was na shaks nowther," continued Matthew quietly.

  • "It's na much as we ha' gotten to put away these times," said the first speaker.

    A Son of Hagar

    Sir Hall Caine
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)

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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2
3
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