2in combination (in units of measurement) nano- (10⁹)
- ‘the plates were coated with 500 ng of protein in sodium carbonate buffer’
From Latin nātus.
in combination Normal (denoting straight-chain hydrocarbons)
11North or northern.
12Note (used in a book's index to refer to a footnote)
An unspecified or variable number.See also nth
- ‘at the limit where n equals infinity’
nounplural noun Ns, plural noun N's
1The fourteenth letter of the alphabet.See also en
- 1.1Denoting the next after M in a set of items, categories, etc.
1(used in recording moves in chess) knight.
Representing the pronunciation of kn-, since the initial letter k- represents ‘king’.
2(on a gear lever) neutral.
3(chiefly in place names) New.
- ‘N Zealand’
(with reference to solutions) normal.
- ‘the pH was adjusted to 7.0 with 1 N HCl’
6North or Northern.‘78° N’
- ‘N Ireland’
- ‘the N bomb’
The chemical element nitrogen.