ACR may refer to:

Medicine

Albumin/creatinine ratio Microalbuminuria is a term to describe a moderate increase in the level of urine albumin. It occurs when the kidney leaks small amounts of albumin into the urine, in other words, when an abnormally high permeability for albumin in the glomerulus o ...

in urine * ACR score for rheumatoid arthritis * ACR gene, encoding the enzyme acrosin *

American College of Radiology The American College of Radiology (ACR), founded in 1923, is a professional medical society representing nearly 40,000 diagnostic radiologists, radiation oncologists, interventional radiologists, nuclear medicine physicians and medical physicists. ...

American College of Rheumatology The American College of Rheumatology (ACR; until 1985 called American Rheumatism Association) is an organization of and for physicians, health professionals, and scientists that advances rheumatology through programs of education, research, advocacy ...

Places

Accrington railway station Accrington railway station serves the town of Accrington in Lancashire, England. It is a station on the East Lancashire line east of Blackburn railway station operated by Northern. It is also served by Caldervale Line express services between ...

, UK, National Rail code *

Araracuara Airport Araracuara Airport is an airport serving Araracuara, in the Caquetá Department of Colombia. Araracuara was the site of a former penal colony for Colombia's worst and most dangerous criminals. The town and airport are on the north bank of the C ...

, Colombia, IATA code

Science and technology

* Absolute Category Rating, a subjective quality test method *

Acumulador de Carga Rápida Acumulador de Carga Rápida (ACR) () is a battery electric tram system marketed by Construcciones y Auxiliar de Ferrocarriles (CAF) of Spain. Trams equipped with ACR are fast-charged while at stops; elsewhere they require no overhead line, which i ...

, a battery electric tram system * Advanced CANDU reactor, a nuclear reactor * Advanced Communications Riser, a PC slot format * Advanced Contrast Ratio or Dynamic Contrast in an LCD display * Copper tubing for air conditioning and refrigeration *

Antarctic Cold Reversal The Antarctic Cold Reversal (ACR) was an important episode of cooling in the climate history of the Earth during the deglaciation at the close of the last ice age. It illustrates the complexity of the climate changes at the transition from the Plei ...

, climatic cooling about 14,500 years ago * Attenuation-to-crosstalk ratio of communication links * Automatic content recognition of video * Adobe Camera Raw, a raw image file converter

Military and weapons

Adaptive Combat Rifle The Adaptive Combat Rifle (ACR) is a modular assault rifle designed by Magpul Industries of Austin, Texas, and known initially as the Masada. In late January 2008, Bushmaster Firearms International entered into a licensing agreement with Magpul ...

* Advanced Combat Rifle, a US Army program *

Armored cavalry regiment An armored cavalry regiment (ACR) is a regiment of the United States Army (Active Component, or Reserve Component (Army Reserve or Army National Guard)) organized for the specific purposes of reconnaissance, surveillance, and security. The reg ...

of the US army or national guard * AČR,

Army of the Czech Republic The Army of the Czech Republic ( cs, Armáda České republiky, AČR), also known as the Czech Army, is the military service responsible for the defence of the Czech Republic in compliance with international obligations and treaties on collectiv ...

(''Armáda České republiky'') * Steyr ACR, an Austrian assault rifle

Other uses

A Certain Ratio A Certain Ratio (abbreviated as ACR) are an English post-punk band formed in 1977 in Flixton, Greater Manchester by Peter Terrell (guitar, electronics) and Simon Topping (vocals, trumpet), with additional members Jez Kerr (bass, vocals), Martin ...

, a British post-punk band * Accelerated chart ratio, affects streaming totals in the Official Charts Company's singles chart * Achi language, a Mayan language of Guatemala *

Americas Cardroom ACR Poker is a US-themed online poker site founded in 2001 and headquartered in San José, Costa Rica. The company serves parts of the United States, Canada, Latin America, and several other countries. It is a subsidiary of the Winning Poker Ne ...

, online poker site * Dodge Viper ACR, a car {{Disambiguation