There are 2 definitions of nm in English:

nm1

Line breaks: nm

abbreviation

1Nanometre.
1.1 (also n.m.) Nautical mile.

Definition of nm in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day humoresque
Pronunciation: ˌhjuːməˈrɛsk
noun
a short, lively piece of music