Acronyms & Abbreviations

The definition of ARS is:

Academic Resource System

Access Routers

Accounting Resources System

Accruals Reporting System

ACE Reporting System

Acoustic resonance spectroscopy

Acquiescence response scale

Acrosome reactions

Action Report System

Action Request System

Action Requests

Action Response System

Active Record Status

Active Repeater Satellite

Active Response System

Active Root Service

Activity Reporting System

Actual Route Selection

Acute radiation sickness

Acute radiation syndrome

Acute Retroviral Syndrome

Adaptive Receptive System

Address Recognition System

Address Retrieval System

Adelaide River School

Adenosine receptors

Administrative region selector

Adrenergic receptors

Adrenoceptors

Adrenoreceptors

Adult Reye's syndrome

Advance record system

Advanced Radiographic System

Advanced reactor safety

Advanced Reconnaissance Satellite

Advanced Reconnaissance System

Advanced Record System

Advanced Recovery System

Advanced Recovery Systems

Advanced Retrieval System

Advanced Righting System

Advanced Roaming Services

Advanced Rocket System

Adverse reactions

Aerial Radiac System

Aerial Recon and Surveillance

Aerial reconnaissance and security

Aerial Reconnaissance and Surveillance

Aerial refueling store

Aerial Refueling System

Aeromet Servicios

Aeronautical Research Scientist

Aerospace Reporting System

African Regional Standards

Age/Race/Sex

Agency Reporting System

Agreement relating to Refugee Seamen

Agrhymet Regional System

Agricultural Research Service

Agriculture Research Service

AIDS reporting system

Air Control Center

Air Radio System

Air reconnaissance squadron

Air Refueling Squadron

Air Rescue Science

Air Rescue Service

Air Rescue Squadron

Air Reserve Station

Air Restart Switch

Air return system

Air Revitalization Subsystem

Air Revitalization System

Air Traffic System Requirements Service

Airborne Radio Search

Airborne Receiver System

Airborne Receiving System

Aircraft Repair Section

Airway Radio Stations

Alarm Reporting System

Alaskan Radar System

Alcohol-related seizures

Aldose reductase sorbitol

Aleris International, Inc.

Alizarin red S

All Regions Server

Alpha-adrenergic receptors

Alpha-adrenoceptors

Alpha-Ray Spectrometer

Alpha-Ray Spectrometry

Alpha-Ray Spectrum

Alpha1-adrenergic receptors

Alpha1-adrenoceptors

ALS Release System

ALTAIR Recording System

Altanthus Response System

Alternate Response System

Alternate Route Selection

Alveolar recruitment strategy

American Radium Society

American Rhinologic Society

American Rocket Society

American Rose Society

Ameritech Reconfiguration Service

Aminoacyl-tRNA synthetase

Amplified Response Spectra

Amplified response spectrum

Analysis and Reporting System

Anaphylactoid reactions

Androgen receptors

Angle-resolved scattering

Anti-arsonate

Anti-p-azophenylarsonate

Antigen recognition site

Antigen recognition sites

Antireflux surgery

Apparent reversals

Applanation resonator sensor

Archive and Retrieval Subsystem

Archives des Sciences

Argentine Peso

Argentinean Nuevo Peso

Argentinian Nuevo Peso

Army Regulations

Army Reserve Sustainment

Arsenic resistance

Arsenical resistance

Arsenite

Arsine

Arsonate

Arsphenamine

Artesunate

Arylsulfatase

As Rapidly Solidified

Asbestos Roof Shingle

Asbestos roof shingles

Asian Research Service

Assignment Requests

Associate Reserve Squadron

Ataxia rating scale

Atherogenic Risk Study

Atmosphere Revitalization System

Atmospheric Radiance Study

ATMOSPHERIC REVITALIZATION SUBSYSTEM

Atmospheric Revitalization System

Atomic resonance spectroscopy

Attitude Reference System

Attributable risks

Auction Rate Securities

Audience Response System

Audio Response System

Audio Routing System

Audiogenic response score

AUTEC Range Services

Auto Route Selection

Autoimmune Reprogramming Systematics

Automated RADAR Summary

Automated Refueling System

Automated Reporting System

Automated Response System

Automated Retrieval System

Automatic Record System

Automatic Recovery System

Automatic Refueling System

Automatic Restraint System

Automatic Route Selection

Automatic Route Selection/Selector

Automatic Route Selector

Automatic Route Setting

Automatic Routing Selection

Autonomous replicating sequence

Autonomous replicating sequences

Autonomous replication sequence

Autonomous replication sequences

Autonomously replicating sequence

Autonomously replicating sequences

Axenfeld-Rieger syndrome

IATA code for Aragarcas Airport, Aragarcas, Brazil

Salvage and Rescue Ship

Salvage Ship

United States Department of Agriculture's Agricultural Research Service