Acronyms & Abbreviations

The definition of RAS is:

IATA code for Mustang Beach Airport, Port Aransas, Texas, United States

Jim Ratliff Air Service

Rabbit aortic strip

Rabbit aortic strips

Rack Access Stands

Radar Absorbent Structure

Radar Absorbent Structures

Radar absorptive structures

Radar Advisory Service

Radio Access System

Radio Astronomy Satellite

Radio Astronomy Service

Radio Astronomy Station

Radio-Acoustic Sounding

Radioactive Sensor

Radioactive Series

Radioactive Source

Radiologist aid system

Radix Angelicae Sinensis

Rail Adapter System

Rail Adaptor System

Rainbow Six 3: Athena Sword

RAIT Investment Trust

Random Access Storage

Random-Access Storage

Range and Status

Ranking and Scaling

Rapid Access Storage

Rapid Assault Squads

Rapid atrial stimulation

Rapidly adapting afferents

Rat aortic strips

Rate Adaptive Shapers

Rate of ankle swelling

Rathus Assertiveness Schedule

Reactor Alarm System

Reactor analysis and safety

Reader Admission System

Readiness Assessment System

Reality-adaptive, supportive

Rear Active Steering

Rear Area Security

Receptor Analysis System

Receptor antagonists

Recirculation actuation signal

Record Assigned Systems

Record Association System

Records and Analysis Subsystem

Recovery activation signal

Recruiting Analysis Service

Recruiting Assistants

Recruitment and Assessment Services

Rectified Air Speed

Recurrent aphthous stomatitis

Reference Assembly Sequence

Reflectance Anisotropy Spectroscopy

Reflection-absorption spectroscopy

Reflection/Absorption Spectrometry

Reflex activating stimulus

Refractive Aberrated Simulator

Refuelling at sea

Regimental aviation squadron

Regional Accounting System

Regional Administrators

Regional Analysis Section

Registered Addiction Specialist

Registration Admission and Status

Registration Admissions And Status

Registration Authorities

Registration, Administration and Status

Registration, Admission and Status

Relational Aggression Scale

Relative aerobic strain

Reliability Assessment Subcommittee

Reliability, availability and scalability

Reliability, Availability and Servicability

Reliability, Availability and Serviceability

Reliability, Availability, Serviceability

Reliablity, Availability, Serviceability

Remedial Action Scheme

Remedial action selection

Remedial Actions

Remedial Alternatives Study

Remote Acceleration Sensor

Remote Access Server

Remote Access Service

Remote Access Services

Remote Access Set

Remote Access Site

Remote Access Software

Remote Access Support

REMOTE ACCESS SYSTEM

Remote acquisition station

Remote Airborne System

Remote Analysis Site

Remote Analysis System

Remote Analysis Systems

Remote Attack Suite

Renal arterial stenosis

Renal arteries

Renal artery stenoses

Renal artery stenosis

Renal artery stent

Renin angiotensin system

Renin-aldosterone system

Renin-angiotensin

Renin-angiotensin system

Renin-angiotensin systems

Renin-angiotensin-aldosterone system

Rennin-angiotensin system

Replenish at Sea

Replenishment At Sea

Replenishmest at Sea

Request for Sub Contract Approval

Requirement Allocation Sheets

Requirements Accounting System

Requirements Allocation Sheet

Requirements Allocation Sheets

Research Analysis and Statistics

Research and Analysis Services

Research Assistants

Research Associates

Reserve Aeroplane School

Residency application service

Resident Assistants

Resin acids

Resolution Advisories

Resource Allocation Software

Resource Allocation System

RESOURCE ANALYSIS SYSTEM

Restricted active space

Reticular activating system

Retinoic acid syndrome

Retinoic acids

Retirement Annuity System

Retrospective Analysis System

Retrovirus associated sequence

Return activated sludge

Return Address Stack

Returned activated sludge

Reusable Asset Specification

Reuse All Systems

Reynolds Averaged Simulation

Rheumatoid arthritis serum

Rhythmic auditory stimulation

Ribi adjuvant system

Right angle light scatter

Riiklik Aktsiaselts

Ring sideroblasts

Ringed sideroblasts

Risk Assessment Study

Robbinsdale Area Schools

Rokitansky-Aschoff sinus

Rokitansky-Aschoff sinuses

Roll Angle System

Roll Aspect Sensor

Roll Aspect System

Romanian Academy of Sciences

Roof antenna system

Roseville Area Schools

Rotational atherectomy system

Route Accounting Subsystem

Router Advertisements

Routine analysis station

Routine analytical service

Routine analytical services

Routing Areas

Row Access Strobe

Row Address Select

Row Address Strobe

Row-Address Strobe

Royal Aeronautical Society

Royal Agricultural Society

Royal Asiatic Society

Royal Astronomical Society

Rudyard Area Schools

Running and screaming

Running Around Screaming

Rural Adjustment Scheme

Russian Academy of Science

Russian Academy of Sciences

Rutgers Annihilation Spectrometer