# ND

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> Source: https://en.wikipedia.org/wiki/ND
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> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

**ND** may refer to:

## Arts and media

- nD, a fictional alien species in [*Invasion: Earth* (TV series)](/source/Invasion:_Earth_(TV_series))
- [Nancy Drew](/source/Nancy_Drew), a fictional teenage sleuth in various media
- [Naughty Dog](/source/Naughty_Dog), an American video game developer
- *[Notitia Dignitatum](/source/Notitia_Dignitatum)*, a late Roman administrative codex
- [Nuclear Dawn](/source/Nuclear_Dawn), a 2011 video game (once a *Half-Life 2* mod)

## Businesses

- [Nextdoor](/source/Nextdoor), a hyperlocal social networking service for neighborhoods
- [NetDocuments](/source/NetDocuments), a British document management company
- [Norsk Data](/source/Norsk_Data), a defunct Norwegian computer manufacturer
- [Neues Deutschland](/source/Neues_Deutschland), or nd, a German daily newspaper
- [Nederlands Dagblad](/source/Nederlands_Dagblad), or ND, a Dutch daily newspaper

## Language

- [Nd (digraph)](/source/Nd_(digraph)), a digraph present in many African languages
- [Northern Ndebele language](/source/Northern_Ndebele_language), of Botswana and Zimbabwe (ISO 639-1:nd)

## Places

- [North Dakota](/source/North_Dakota), a state of the United States
- [New Delhi](/source/New_Delhi), India's capital city
- [Notre Dame (disambiguation)](/source/Notre_Dame_(disambiguation)), a number of churches and colleges
- [Nguyen dynasty](/source/Nguyen_dynasty), unified Vietnamese empire (1802–1884)

## Politics

- [National Democracy (Poland)](/source/National_Democracy_(Poland)), a political movement 1886–1947
- [National Democrats (Sweden)](/source/National_Democrats_(Sweden)), a far-right party 2001–2014
- [New Dawn (Algeria)](/source/New_Dawn_(Algeria)), a nationalist party formed in 2012
- [New Democracy (Canada)](/source/New_Democracy_(Canada)), an economic reform party 1939–1940
- [New Democracy (Greece)](/source/New_Democracy_(Greece)), a center-right party formed in 1974
- [New Democracy (North Macedonia)](/source/New_Democracy_(North_Macedonia)), a conservative ethnic Albanian party formed in 2008
- [New Democrats (France)](/source/New_Democrats_(France)), a left-wing party 2020–2022
- [Nuclear disarmament](/source/Nuclear_disarmament), the dismantlement and proposed dismantling of nuclear weapons

## Science and technology

### Mathematics

- [nd (elliptic function)](/source/Nd_(elliptic_function)), one of Jacobi's elliptic functions

### Medicine

- [NADH dehydrogenase](/source/NADH_dehydrogenase), an enzyme
- Non-distended, an [abdominal distension](/source/Abdominal_distension) clinical examination value
- Naturopathic Doctor, a degree in [naturopathic medicine](/source/Naturopathic_medicine)
- [Notifiable disease](/source/Notifiable_disease), any disease that is required by law to be reported to government authorities

### Physics

- [ND Experiment](/source/ND_Experiment), a particle physics experiment in Novosibirsk, Russia
- nD, the [refractive index](/source/Refractive_index) of a medium at a wavelength of 589.8 nm

### Other uses in science and technology

- [Neighbor Discovery](/source/Neighbor_Discovery), an Internet protocol
- [Neodymium](/source/Neodymium), symbol Nd, a chemical element
- [Neutral density filter](/source/Neutral_density_filter), a type of filter used in photography
- [Contax N Digital](/source/Contax_N_Digital), a digital camera
- ND for *nominal diameter* in [piping](/source/Pipe_(fluid_conveyance))
- ND MX-5 Miata, the [fourth generation of the Mazda MX-5](/source/Mazda_MX-5_(ND))

## Weapons and military

- [United States Navy Diver](/source/United_States_Navy_Diver), an occupational rating
- [Negligent discharge](/source/Unintentional_discharge_(firearms)#Negligent_discharge), a careless use of a firearm
- [Norrland Dragoon Regiment](/source/Norrland_Dragoon_Regiment), of the Swedish Army
- [Nuclear disarmament](/source/Nuclear_disarmament), the proposed dismantling of nuclear weapons

## Other uses

- [National Diploma (Ireland)](/source/National_Diploma_(Ireland)), an academic qualification in the Republic of Ireland
- [New Dawn (disambiguation)](/source/New_Dawn_(disambiguation)), with various meanings
- [Neurodiversity](/source/Neurodiversity), variation in cognition and sociability (per the social model of disability)
- n.d. for "no date", an abbreviation used in [APA-style](/source/APA_style#Reference_list) and other styles of bibliographic citations
- in the [International Code of Signals](/source/International_Code_of_Signals), denotes a tsunami warning

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Adapted from the Wikipedia article [ND](https://en.wikipedia.org/wiki/ND) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/ND?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.