NOS

Look up NOS or nos in Wiktionary, the free dictionary.

NOS may refer to:

Businesses and organisations

NOS (Portuguese media company), a media and telecommunications company
National Office of Statistics, Algeria
National Ocean Service, a office of the American government responsible for protecting coastline ecosystems and resources
National Open School or National Institute of Open Schooling, the Board of Education for open schools in India
National Orthodox School, a private school in Amman, Jordan
Nederlandse Omroep Stichting, a Dutch public broadcaster
Nitrous Oxide Systems, a manufacturer of nitrous systems for high-performance automobiles

Network operating system, a kind of computer software for running local area networks
NOS (software), the primary operating system for the Control Data Corporation Cyber line of mainframe computers

Nitrous oxide, N2O, a gas commonly referred to as "nitrous" or "NOS" in vehicle racing
Nitric oxide synthase, a class of enzymes
National Ocean Service, part of the National Oceanic and Atmospheric Administration
Neotropical Ornithological Society
Not Otherwise Specified, a categorization of illnesses

National Occupational Standards, UK standards of performance that people are expected to achieve in their work
New old stock, merchandise being offered for sale which was manufactured long ago but that has never been used
NOS (drink), a beverage named after Nitrous Oxide Systems
Nos, Book of the Resurrection, a book by Miguel Serrano (original title: Nos: Libro de la Resurrección)
Nos. or nos., also called the Numero sign, an abbreviation of the word "Numbers"
NOS stereo technique, a method of capturing stereo sound