2in combination (in units of measurement) nano- (10⁹)‘the plates were coated with 500 ng of protein in sodium carbonate buffer’
in combination Normal (denoting straight-chain hydrocarbons)‘n-hexane’
11North or northern.
12Note (used in a book's index to refer to a footnote)‘450n’
An unspecified or variable number.‘at the limit where n equals infinity’See also nth
1The fourteenth letter of the alphabet.
- 1.1Denoting the next after M in a set of items, categories, etc.
1(used in recording moves in chess) knight.‘17.Na4?’
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’
7Nuclear.‘the N bomb’
The chemical element nitrogen.