(SM&R code) NMD – (i) U.S. National Missile Defense NMN – (i) No middle name NMOS – (i/a) N-type/Negative Metal-Oxide-Semiconductor transistor ("enn-moss") NMSG – (i) NATO Modelling and Simulation Group NMR – (i) Nuclear Magnetic Resonance NMHNFG – (i) Not Made Here, No Fucking Good NN nn – (s) Norwegian Nynorsk language (ISO 639-1 code) nN – (s) Nanonewton NNE – (i) North North-East nno – (s) Norwegian Nynorsk language (ISO 639-2 code) NNSA – (i) U.S. National Nuclear Security Administration NNW – (i) North North-West NO no – (s) Norwegian language (ISO 639-1 code) No – (s) Nobelium NO (s) Nitric Oxide (i) Normally Open (s) Norway (ISO 3166 and FIPS 10-4 country code digram) NOAA – (a) U.S. National Oceanic and Atmospheric Administration NOAF – (i) Norwegian Air Force NOAO – (i) National Optical Astronomy Observatory nob – (s) Norwegian Bokmål language (ISO 639-2 code) NOC – (i) UK. National Oceanography Centre NODEF – (a) NATO Oceanographic Data Exchange Format No-FEAR – (p) Notification and Federal Employee Antidiscrimination Retaliation Act (2002) NOK – (s) Norwegian krone (ISO 4217 currency code) NOLA – (p) New Orleans, Louisiana (LA is the official postal code for Louisiana) NOGI – (a) New Orleans Grande Isle (award for diving) NOLF – (i) Navy OutLying Field NOM – (i) Novus Ordo Missae or New Ordinary of the Mass (sometimes abbreviated to simply "NO") NOME – Not on Mars Either NoMBO – (p) Non-mine, Mine-like Bottom Object NOME – Not on Mars Either (see NIMBY) NOPA – (i) National Office Products Alliance – National Office Products Association nor – (s) Norwegian language (ISO 639-2 code) NOR – (s) Norway (ISO 3166 trigram) NORAD – (p) North American Aerospace Defense Command NORCECA – (p) North, Central America and Caribbean Volleyball Confederation NORELPREF – No religious preference NORML – (a) National Organization for the Reform of Marijuana Laws ("normal") NORTHAG – (p) Northern Army Group NOS (i) Network Operating System New Old Stock (Internet auction/trading listings) Nitric Oxide Synthase (enzyme) NOSA – (i) NATO OSI Security Architecture NOTAFLOF – (a) No One Turned Away For Lack Of Funds NOTAM – (p) Notice to Airmen NOW – (a) National Organization for Women NP Np (p) Neap tide (nautical charts) (s) Neptunium NP (s) National Permit (authorization used in India to allow trucks to go anywhere in the nation) Nepal (ISO 3166 and FIPS 10-4 country code digram) NPB