A nonsteroidal anti-inflammatory drug.

An antidepressant drug.

A thrombolytic drug.

naftidrofuryl

(medicine) Initialism of non-alcoholic fatty liver disease: a spectrum of disorders characterized by predominantly macrovesicular hepatic steatosis occurring in individuals in the absence of significant alcohol consumption.

Initialism of National Aviation Facilities Experimental Center. / Initialism of North East Asia Foundation for Education and Culture.

Something or someone insignificant; a trifle.

plural of niff-naff

A large town in Argolis, Peloponnese, Greece.

An aerogel made from near-parallel strands of aluminium oxide