AVR may refer to:

Railroad

Allegheny Valley Railroad (1995) The Allegheny Valley Railroad is a class III railroad that operates in Western Pennsylvania, and is owned by Carload Express, Inc. AVR acts as a feeder line connecting its many and varied customers to Class I railroads such as CSX Transportati ...

, shortline railroad in Pennsylvania, U.S. *

Aroostook Valley Railroad The Aroostook Valley Railroad was a railroad that operated between Presque Isle and Caribou, Maine from the early 1900s to 1996. The railroad operated maroon interurban cars with grey roofs on 1200 volt DC power until 1945. History Arthur R. G ...

, a defunct railroad in Maine, U.S. * Assiniboine Valley Railway, a minimum gauge railway in Winnipeg, Canada *

Avon Valley Railway The Avon Valley Railway (AVR) is a standard gauge heritage railway in South Gloucestershire, England, operated by a local group, the Avon Valley Railway Company Ltd. The 3-mile (5 km) heritage line runs from Oldland Common to Avon River ...

, a heritage railway in the United Kingdom

Radio

Aboriginal Voices Radio Aboriginal Voices Radio Network (rebranded as Voices Radio in 2014) was a Canadian radio network, which primarily broadcast music programming and other content of interest to aboriginal people. As of June 2015, the network operated stations in To ...

, an Aboriginal Canadian national radio network * Annapolis Valley Radio, a country station located in Kentville, Nova Scotia

Electronics

AVR microcontrollers AVR is a family of microcontrollers developed since 1996 by Atmel, acquired by Microchip Technology in 2016. They are 8-bit RISC single-chip microcontrollers based on a modified Harvard architecture. AVR was one of the first microcontrolle ...

, a family of microcontrollers originally developed by Atmel, now part of Microchip Technology * Audio/video receiver, a home theater electronic component * Acronym for

augmented reality Augmented reality (AR), also known as mixed reality (MR), is a technology that overlays real-time 3D computer graphics, 3D-rendered computer graphics onto a portion of the real world through a display, such as a handheld device or head-mounted ...

and

virtual reality Virtual reality (VR) is a Simulation, simulated experience that employs 3D near-eye displays and pose tracking to give the user an immersive feel of a virtual world. Applications of virtual reality include entertainment (particularly video gam ...

interactive experiences * Automatic

voltage regulator A voltage regulator is a system designed to automatically maintain a constant voltage. It may use a simple feed-forward design or may include negative feedback. It may use an electromechanical mechanism or electronic components. Depending on the ...

Other uses

* Armed violence reduction *

Aortic valve replacement Aortic valve replacement is a cardiac surgery procedure whereby a failing aortic valve is replaced with an artificial heart valve. The aortic valve may need to be replaced because of aortic regurgitation (back flow), or if the valve is narro ...

* Automatic

voter registration In electoral systems, voter registration (or enrollment) is the requirement that a person otherwise Suffrage, eligible to Voting, vote must register (or enroll) on an electoral roll, which is usually a prerequisite for being entitled or permitted ...

* Avacyn Restored *

AVR reactor The AVR reactor () was a prototype pebble-bed reactor, located immediately adjacent to Jülich Research Centre in West Germany, constructed in 1960, grid connected in 1967 and shut down in 1988. It was a 15 MWe, 46 MWt test reactor used to devel ...

('), a German prototype pebble bed reactor * Avirulence gene, "Avr" * Auxiliary Vessel, Rescue or Aircraft Vessel, Rescue * Lead augmented vector right (aVR), a voltage difference in

electrocardiography Electrocardiography is the process of producing an electrocardiogram (ECG or EKG), a recording of the heart's electrical activity through repeated cardiac cycles. It is an electrogram of the heart which is a graph of voltage versus time of t ...

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