What does RA stand for?

Antonine Sisters (TOCD)

Application for Reinstatement - Motor vehicle violation code used in state of Maryland (MVRD)

Argentina (SAUS)

Argentine (SAUS)

Average Roughness (SAUS)

Coast RADAR Station - Maps and charts

High-Powered Radio Range (Adcock)

Rabbinical Assembly (EA)

Race Announcement (SAUS)

Racecourse Association (BUAC)

RADAR Altimeter - Aviation (KSC)

Rader Aerosports - Air show performer (ASPC)

Radiation Alarm (SAUS)

Radiation Area (SAUS)

Radiation Oncology Services (MEDA)

Radio (WDAA)

Radioactive

Radio Altimeter

Radio Altitude (HLLA)

Radio Andorra (SAUS)

Radio Antenna

Radio Astronomy (SAUS)

Radioastronomy (SAUS)

Radioatmospherics (SAUS)

Radio Authority - Government regulatory agency - British

Radiocommunications Agency (BUAC)

Radiology (DAVI)

Radiology Assembly of Medical Group Management Association (SAUS)

Radionic Association (EA)

Radionuclide Angiography - Medicine (EDAA)

Radium (VLIE)

Radius of Action (AAG)

Ragocyte - Medicine (DMAA)

Ragweed Antigen - Immunology

RAID Assessment (SAUS)

Rain - ICAO (FAAC)

Rainforest Alliance (EA)

Raise (AAG)

Raker Act of 1913 (COE)

Rales - Medicine (EDAA)

Rambler American - NCIC car model code

Ramblers' Association - British (DBA)

Ramp Actuator

Ranch

Random Access - Computer science (AAG)

Random-Access (SAUS)

Random Addressing (SAUS)

Random Availability (SAUS)

Range - Aviation

Range Area (NASA)

Range Assessor - British military (DMA)

Rape - Division in the county of Sussex - British

Rapid Access - Film (DGA)

Rapid-American Corp.

Rapid Anastigmatic (Lens) - Photography (ROG)

Rapidly Adapting - Medicine (EDAA)

Raritan Arsenal (AAG)

Rasmussen and Associates, Inc. - Commercial firm

Rastatt - German license plate city code

Rate Action (AAG)

Rate Adaptation (SAUS)

Rate Adapter (VLIE)

Rate Adaption

Rate of Application

Rate of Approach (IIA)

Ratepayers' Association - British (ILCA)

Ratio Actuator (MCD)

Ration

Ration Allowance - British military (DMA)

Rational Number (VLIE)

Raynaud's Phenomenon - Medicine

Rayon (AAG)

Reactive Armor (SEWL)

Read-Access (SAUS)

Read Amplifier

Reading Age (WDAA)

Ready-Access - Telecommunications (TEL)

Ready Alert - Navy (NVT)

Real Audio (SAUS)

Rear Access (SAUS)

Rear Admiral - Also, RADM, RADML

Rear Artillery

Reasonable Alternative (GNE)

Rebuild America (EA)

Receiver Attenuation

Receiver Auxiliary (IAA)

Recipient Agency - Federal government (GFGA)

Recipient Rights Adviser

Reciprocal Asymmetrical - Medicine (DMAA)

Reckson Associates Realty - NYSE symbol

Reckson Associates Realty Corp. - NYSE symbol (SAG)

Reclamation Act of 1902 (COE)

Reclamation Association (BUAC)

Recognition Arrangement (VLIE)

Reconfiguration Actions (SAUS)

Reconnaissance Aircraft (DNAB)

Record Address (IAA)

Record Automation (SAUS)

Recording Amplifier (SAUS)

Recording Annunciator (IAA)

Records Administration (MCD)

Recreation Aide - Red Cross

Recrystallization-Anneal (PDAA)

Rectal Artery (SAUS)

Rectifier (IAA)

Rectifier Alarm (SAUS)

Recycling Agent (SAUS)

Redevelopment Act (OICC)

Redstone Arsenal - Huntsville, AL - Army

Reduced Aperture (MCD)

Reduced Area (SAUS)

Reducing Adapter (SAUS)

Reduction of Area

Referees' Association - British (DBA)

Refer to Accepter - Banking

Refractories Association of Great Britain (BUAC)

Refractory Anemia - Medicine

Refractory Ascites - Medicine (DMAA)

Refugee Action - An association (BUAC)

Refugee Agency - NATO (NATG)

Regia Anglorum - British - An association (DBA)

Regional Administrator

Regional Association (SAUS)

Regional Associations - Marine science (MSC)

Register Address (SAUS)

Register Allocator (IAA)

Registered Architect (IIA)

Registration Act

Registration Appeals - A publication (DLA)

Registration Authority (GART)

Regression Analysis (MELL)

Regular Army

Regulation Appeals - A publication (DLA)

Regulatory Affairs (HVTR)

Regulatory Alternative - Federal government (GFGA)

Regulatory Analysis - Federal government (GFGA)

Rehabilitation Act (OICC)

Reimbursement Authorization (AFM)

Reims Aviation - France - ICAO aircraft manufacturer identifier (ICAO)

Reinforced Alert (NATG)

Relative Abundance - Chemistry

Relative Activity - Physiology

Relative Address

Relative Allocation - Medicine (EDAA)

Relative Humidity-Ambient - Automotive emissions

Relaxation Allowance (SAUS)

Releaed-Action (SAUS)

Release Authorization

Released-Action - Pharmacy

Reliability Analysis (AAG)

Reliability Assessment (KSC)

Reliability Assurance (MCD)

Religious of the Apostolate of the Sacred Heart - Roman Catholic women's religious order

Religious of the Assumption - Roman Catholic women's religious order

Relocation Address

Relocation Assistance - HUD

Remedial Action - Navy

Remington Arms (SAUS)

Remittance Advice (MCD)

Remote Access - Telecommunications (IAA)

Remote Area

Removal Action (SAUS)

Renal Artery - Anatomy

Renault Agriculture (SAUS)

Renew America (SAUS)

Renin Activity (AAMN)

Renin-Angiotensin - Medicine (DMAA)

Rental Agreement

Repair Action (VLIE)

Repair Assignment (AAG)

Repeat Action - Medicine

Repeated Attacks - Medicine

Repeat to Address - Computer science (ELAL)

Replacement Algorithm

Reporting Activity (MCD)

Repository Administrator (AGLO)

Representative Assembly

Representing Automata (SAUS)

Republicans Abroad (EA)

Republic Automotive Parts, Inc. (EFIS)

Republic Aviation (SAUS)

Requesting Agency (MUGU)

Requirements Analysis

Rescue Ambulance - Emergency medicine (DAVI)

Research Assistant

Research Associate (SAUS)

Research Association (SAUS)

Reserve Affairs (DOMA)

Reserve Alkalinity (SAUS)

Resettlement Administration (ODA)

Resident Adviser (or Advisor) (SAUS)

Resident Agency (SAUS)

Resident Agent (AFM)

Resident Alien

Resident Assistant

Resident Auditor

Residual (SAUS)

Residual Air

Resistance Air (SAUS)

Resistor Assembly

Resolution Advisory (SAUS)

Resorcyclic Acid (SAUS)

Resource Allocation (MCD)

Resource Application (ERG)

Resource Assistant (GNE)

Respiration Anificielle (SAUS)

Respiratory Allergy - Immunology

Respiratory Arrest - Medicine

Responsible Authority (FOTI)

Restart Address (SAUS)

Restricted Account - Banking

Resume-Accelerate - Automotive engineering

Resynchronize Acknowledgement (SAUS)

Retinal Anlage - Ophthalmology

Retinoic Acid - Biochemistry

Retrograde Amnesia - Medicine

Return Address

Return Air - Technical drawings

Return Authorization (SAUS)

Revenue Act - 1962, 1964, 1971, 1976, 1978

Revenue Adjustment - Electric utility company

Revenue Agent - IRS

Reverendus Admodum - Very Reverend - Latin

Review and Analysis

Reviewing Activity (MCD)

Reviewing Authority

Reviews in Anthropology - A publication (BRI)

Revue Administrative - A publication (ILCA)

Rheumatoid Agglutinins - Clinical chemistry

Rheumatoid Arthritis - Medicine

Rice Association - British (DBA)

Riders Association - Defunct (EA)

Ridge and Associates, Inc. - Commercial firm

Rifle, Automatic - NCIC gun type code (NCIC)

Right Accumulator (IAA)

Right Address (SAUS)

Right Aft (MCD)

Right Angle (DEN)

Right Angulation (SAUS)

Right Aortic - Medicine (DB)

Right Arch - Freemasonry

Right Arm - Medicine

Right Ascension - Navigation

Right Atrium - Cardiology

Right Auricle - Anatomy

Right Axilla (KSC)

Rigid Axle - Automotive engineering

Ripple Adder

Risk Analysis (MCD)

Risk Assessment (GFGA)

Road America - Automotive raceway

Road Association (SAUS)

Robbery Armed

Robert Singer and Associates, Inc. - Commercial firm

Robustness Analysis (SAUS)

Robustrus Archistriatalis - Bird brain anatomy

Rocket Assist

Rokitansky-Aschoff - Sinus - Gastroenterology

Room Air (MEDA)

Root Addressable (SAUS)

Root Apex - Botany

Roquefort Association (EA)

Rosin Acid - Organic chemistry

Rosin Activated - Standard material for soldering

Rotary Assembly

Rotation Angiography - Medicine (DMAA)

Rotogravure Association

Routing Arbiter - Telecommunications

Royal Academician - or Academy - British

Royal Academy - British (WDAA)

Royal Academy of Arts (BUAC)

Royal Academy of Arts in London - British

Royal Arcanum (SAUS)

Royal Arch - Freemasonry

Royal Armouries - Tower of London

Royal Arsenal (SAUS)

Royal Art

Royal Artillery - British

Royal Artist

Royal Nepal Airlines - ICAO designator (AD)

Royal Nepal Airlines Corp (SAUS)

Royal Regiment of Artillery - Military - British

Rubber-Activated (SAUS)

Rueckwaertiges Armeegebiet - Rear area of an army - German military

Rules on Appeal - A publication (DLA)

Ruling Action (SAUS)

Running Accumulator (SAUS)

Ruptured Appendix - Medicine (MELL)

Rural

Rural Action - An association (BUAC)

Rural Area (CGWS)

Russia - NCIC country-territory code (NCIC)

Russia - Civil aircraft markings - international (PIPO)

Russian Air - To distinguish call-signs and frequencies - World War II - British

Russian American

Thermal Resistance of Unit Area - Heat transmission symbol

Airway Resistance - Medicine (MAE)

RADAR

Radar Range - Nautical term (HRNC)

Radar Reference Line - Nautical term (HRNC)

RADAR Station

Radium - Chemical element

Rainerius - Authority cited in pre-1607 legal work (DSA)

Rastell's Entries - A publication (DSA)

Rayleigh Number - IUPAC

Raymundus de Pennafort - Deceased, 1275 - Authority cited in pre-1607 legal work (DSA)

Remedial Action - Office of Environmental Management, Department of Energy (DEEM)