N, n

[en]

noun, plural N's or Ns, n's or ns.

the 14th letter of the English alphabet, a consonant.
any spoken sound represented by the letter N or n, as in now, dinner, son, etc.
something having the shape of an N.
a written or printed representation of the letter N or n.
a device, as a printer's type, for reproducing the letter N or n.

n

Symbol.

Physics. neutron.

N

Physics. newton; newtons.

N

Symbol.

the 14th in order or in a series, or, when I is omitted, the 13th.
(sometimes lowercase) the medieval Roman numeral for 90.Compare Roman numerals.
Chemistry. nitrogen.
Biochemistry. asparagine.
Mathematics. an indefinite, constant whole number, especially the degree of a quantic or an equation, or the order of a curve.
Chess. knight.
Printing. en.
Chemistry. Avogadro's number.

an

2
[uh n; when stressed an]

conjunction

Pronunciation Spelling. and.
Archaic. if.
Also an', 'n, 'n'.

Origin of an

2
1125–75; Middle English, unstressed phonetic variant of and

n-

Chemistry.

an abbreviated form of normal, used in the names of hydrocarbon compounds that have a normal or straight chain of carbon atoms: n-3 fatty acid.

n.

1

Origin of n.

1
From the Latin word nātus

n.

2

Commerce. net.
Chemistry. normal (strength solution).
Finance. note.

'n

or 'n'

[uh n]

conjunction Pronunciation Spelling.

and: Stop 'n save. Look 'n listen.

N.

Chemistry. normal (strength solution).
Finance. note.

-n

variant of -an after a vowel: Virginian.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for n


British Dictionary definitions for n

n

N

noun plural n's, N's or Ns

the 14th letter and 11th consonant of the modern English alphabet
a speech sound represented by this letter, usually an alveolar nasal, as in nail

symbol for

neutron
optics index of refraction
nano-

determiner

an indefinite number (of)there are n objects in a box

N

symbol for

Also: kt chess knight
neper
neutral
newton(s)
chem nitrogen
North
Avogadro's number
noun

abbreviation for

Norway (international car registration)

An

1

noun

myth the Sumerian sky godBabylonian counterpart: Anu

An

2

the chemical symbol for

actinon

AN

abbreviation for

Anglo-Norman

n-

prefix

chem short for normal (def. 6)

n.

abbreviation for

natus
neuter
new
nominative
noun

Word Origin for n.

(for sense 1) Latin: born

an

1

determiner

a form of the indefinite article used before an initial vowel soundan old car; an elf; an honour

Word Origin for an

Old English ān one

usage

An was formerly often used before words that begin with h and are unstressed on the first syllable: an hotel; an historic meeting . Sometimes the initial h was not pronounced. This usage is now becoming obsolete

an

2

an'

conjunction

(subordinating) an obsolete or dialect word for if See and (def. 9)

an

3

the internet domain name for

Netherlands Antilles
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

Word Origin and History for n
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for n

n

abbr.

refractive index

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for n

N

Abbreviation of newton
The symbol for nitrogen.

nitrogen

[nītrə-jən]

N

A nonmetallic element that makes up about 78 percent of the atmosphere by volume, occurring as a colorless, odorless gas. It is a component of all proteins, making it essential for life, and it is also found in various minerals. Nitrogen is used to make ammonia, nitric acid, TNT, and fertilizers. Atomic number 7; atomic weight 14.0067; melting point -209.86°C; boiling point -195.8°C; valence 3, 5. See Periodic Table. See Note at oxygen.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.