Editing ACR

'''ACR''' may refer to:
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==Aviation==
* IATA airport code for [[Araracuara Airport]] in Caquetá Department, Colombia
* [[Aircraft Classification Rating]]

==Medicine==
* [[Albumin/creatinine ratio]] in urine
* ACR gene, encoding the enzyme [[acrosin]]
* [[ACR score]] for rheumatoid arthritis
* [[American College of Radiology]]
* [[American College of Rheumatology]]

==Places==
* [[Accrington railway station]], UK, National Rail code

==Railways==
* Alaska Central Railroad, original name of the [[Alaska Railroad]]
* [[Alberta Central Railway]], an historical railroad in Alberta, Canada
* [[Algoma Central Railway]], a railroad in Northern Ontario, Canada
* [[Anglesey Central Railway]], a railroad in Wales, UK

==Science and technology==
* [[Absolute Category Rating]], a subjective quality test method
* [[Acumulador de Carga Rápida]], a battery electric tram system
* [[Adobe Camera Raw]], a raw image file converter
* [[Advanced CANDU reactor]], a nuclear reactor
* [[Advanced Communications Riser]], a PC slot format
* Advanced Contrast Ratio or [[Contrast ratio#Dynamic contrast (DC)|Dynamic Contrast]] in an LCD display 
* [[Anonymous call rejection]], a voice telephone network calling feature
* [[Antarctic Cold Reversal]], climatic cooling about 14,500 years ago
* [[List_of_screw_drives#Phillips_II|Anti Cam-Out Recess]], an improved Philips screwdriver
* [[Attenuation-to-crosstalk ratio]] of communication links
* [[Automatic content recognition]] of video
* [[Copper tubing#United States, Canada and India|Copper tubing]] for air conditioning and refrigeration 

==Military and weapons==
* AČR, [[Army of the Czech Republic]] (''Armáda České republiky'')
* [[Adaptive Combat Rifle]]
* [[Advanced Combat Rifle]], a US Army program
* [[Armored cavalry regiment]] of the US army or national guard
* [[Steyr ACR]], an Austrian assault rifle
* A US Navy hull classification symbol: [[List of cruisers of the United States Navy#Armored cruisers (ACR)|Armored cruiser (ACR)]]

==Other uses==
* [[UK Singles Chart|Accelerated chart ratio]], affects streaming totals in [[Official Charts Company|the Official Charts Company's]] singles chart
* [[Achi language]], a Mayan language of Guatemala
* [[Americas Cardroom]], online poker site
* [[A Certain Ratio]], a British post-punk band
* [[Dodge Viper#Viper ACR|Dodge Viper ACR]], a car

{{Disambiguation}}