ASR

ASR may refer to:

Science

• Acute stress reaction, a psychological condition arising in response to a terrifying or traumatic event
• Adult sex ratio, the ratio of males to females in adult populations of a particular species
• Alkali Silica Reaction, a reaction between alkali and amorphous silica which occurs over time in concrete leading to its destruction
• Analyte specific reagent, a class of biological molecules
• Automotive shredder residue, a mixture of metallic waste resulting from the shredding of automobiles
• Soybean rust (a.k.a. Asian Soybean Rust), a disease that affects soybeans and other legumes
• Aquifer storage and recovery, the re-injection of potable water back into an aquifer for later recovery and use

Technology

• Airport surveillance radar, a radar system used at airports to detect and display the position of aircraft
• Answer/seizure ratio, a telecommunications success determination ratio
• Traction control system (a.k.a. Anti-Slip Regulation), an electro-hydraulic system on production vehicles designed to prevent loss of traction
• Automatic Send Receive, a designation used by Teletype Corporation for teleprinters that contain a keyboard and punched tape equipment

Organisations

• ASR Nederland, a Dutch insurance company
• Academy at Swift River, a coeducational therapeutic boarding school for teenagers
• Erkilet International Airport (IATA code: ASR), a Turkish military airbase and public airport

Software

• Apple Software Restore, a command line utility in Mac OS X
• Automated System Recovery, a feature of Windows XP and lower Microsoft Windows operating systems
• Automatic system recovery, a device or process that detects a computer failure and attempts recovery
• Speech recognition (a.k.a. automatic speech recognition), the conversion of spoken words to text
• Architecturally significant requirements, requirements with measurable effects on the software architecture design

People

• AnnaSophia Robb, actress, model and singer
• Arnav Singh Raizada, fictional character in the Indian daily soap opera Iss Pyaar Ko Kya Naam Doon?

Transport

• Abellio ScotRail, a train operating company in Scotland

Military

• Alternate Supply Route, for military logistics as opposed to MSR
• Hull Classification Symbol for Submarine Rescue Ship (US Navy)

Other

• Asr, the daily afternoon prayer in Islam
• Air-sea rescue, the coordinated search and rescue of sea-bound accident survivors
• American Sociological Review, an academic journal
• Accelerated Share Repurchase, a method that publicly traded companies may use to buy back shares of its stock from the market
• Arizona State Route