# ATR

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> Source: https://en.wikipedia.org/wiki/ATR
> Source revision: 1237975337
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

**ATR** may refer to:

## Medicine

- [Acute transfusion reaction](/source/Acute_transfusion_reaction)
- [Ataxia telangiectasia and Rad3 related](/source/Ataxia_telangiectasia_and_Rad3_related), a protein involved in DNA damage repair

## Science and mathematics

- [Advanced Test Reactor](/source/Advanced_Test_Reactor), nuclear research reactor at the Idaho National Laboratory, US
- [Attenuated total reflectance](/source/Attenuated_total_reflectance) in infrared spectroscopy
- [Advanced tongue root](/source/Advanced_tongue_root), a phonological feature in linguistics
- [Atractyloside](/source/Atractyloside), a toxin and inhibitor of "ADP/ATP translocase"
- ATR0, an axiom system in [reverse mathematics](/source/Reverse_mathematics#Arithmetical_transfinite_recursion_ATR0)

## Technology

- [Answer to reset](/source/Answer_to_reset), a message output by a contact Smart Card
- [Automatic target recognition](/source/Automatic_target_recognition), recognition ability
- [Autothermal reforming](/source/Autothermal_reforming), a natural gas reforming technology

## Transport

- [ATR (aircraft manufacturer)](/source/ATR_(aircraft_manufacturer)) an Italian-French aircraft manufacturer - [ATR 42](/source/ATR_42) airliner - [ATR 72](/source/ATR_72) airliner
- IATA code for [Atar International Airport](/source/Atar_International_Airport)
- [Andaman Trunk Road](/source/Andaman_Trunk_Road)
- Air Transport Rack, standards for plug-in electronic modules in aviation and elsewhere; various suppliers e.g. [ARINC](/source/ARINC)
- [Atmore (Amtrak station)](/source/Atmore_(Amtrak_station)), Amtrak station code ATR

## Music

- [All That Remains (band)](/source/All_That_Remains_(band)), an American heavy metal band
- [Atari Teenage Riot](/source/Atari_Teenage_Riot), a German techno band performing "digital hardcore" music - [*ATR* (song)](/source/ATR_(song)), a song by ATR

## Organisations

- [Absent Teacher Reserve](/source/Absent_Teacher_Reserve), of teachers in New York City
- [Americans for Tax Reform](/source/Americans_for_Tax_Reform)
- [Anglican Theological Review](/source/Anglican_Theological_Review)

## Other

- [African Traditional Religion](/source/African_Traditional_Religion)
- A US Navy hull classification symbol: [Rescue tug (ATR)](/source/List_of_auxiliaries_of_the_United_States_Navy#Rescue_tugs_(ATR))
- , a video game
- [ATR.1 certificate](/source/ATR.1_certificate), in trade between the European Union and Turkey
- [ATR (company)](/source/ATR_(company)) (*Auto-Teile-Ring*), Germany
- [Average True Range](/source/Average_True_Range), a market volatility indicator
- [ATR (TV channel)](/source/ATR_(TV_channel)), a Crimean Tatar television channel in Ukraine

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