plural of Nm

(Internet slang, tone indicator) Denotes that the writer is not mad or otherwise upset.

plural of NM

Third-person singular simple present indicative form of NM

Initialism of no middle name.

(US, historical) Initialism of National Mental Health Association.

Initialism of nuclear magnetic resonance.

(computing) Initialism of non-maskable interrupt.

Initialism of no middle initial.

(analytical chemistry) An analytical technique that exploits fine differences in the frequency of nuclear magnetic resonance in protons (and ¹³C atoms, etc.) within organic compounds that depends on their neighbouring atoms.