(military, US) Initialism of Naval Reserve Officers Training Corps.

plural of NRI

(astronomy, radio astronomy) Initialism of National Radio Astronomy Observatory.

(medicine, chiefly attributive) Non-rapid eye movement, non-REM; designating the stage or stages of sleep when there is no dreaming and brain activity is reduced.

plural of nRNA

(music) A style of uptempo disco or electronic dance music that originated in the United States and United Kingdom in the late 1970s.

(historical) The medieval West African state of the Nri-Igbo, a subgroup of the Igbo people.

The rhythmic element of Indian classical dance.

Third-person singular simple present indicative form of nroff

simple past tense and past participle of nroff