Abbreviations & Acronyms Dictionary

Air Sunshine
Rádio Slovakia International
Radarsat International
RADARSAT International Remote Sensing Institute
Radial Scientific Instrument
Radial Shear Interferometer
Radiation Status Indicator
Radio Science Investigation
Radionuclide scrotal imaging
Rainbow Satellite, Inc.
Range Security Initiative
Rapid sequence induction
Rapid Sequence Intubation
Rapid-sequence induction
Rate Schedule Indicator
Rate Stability Indicator
Rationalization, Standardization and Integration
Rationalization, Standardization and Interoperability
Rationalization/standardization/interoperability
Reactor safety information
Reactor siting index
Receipt, Storage and Issue
Recherche en Soins Infirmiers
Reconnaissance, surveillance and intelligence
Record Status Indicator
Recursion Software, Incorporated
Reflux symptom index
Regional Staff Inspector
Register Sender Inward
Rehabilitation Situations Inventory
Related and Supplemental Instruction
Relative signal intensity
Relative Strength Index
Relative strength indicator
Remote Sensing Imagery
Remote Station Inputs
Remote Symbiont Interface
Remote Systems Integration
Remotely Sensed Imagery
Repetition strain injury
Repetitive Strain Injuries
Repetitive Strain Injury
Repetitive Stress Injuries
Repetitive Stress Injury
Replacement stream input
Replication Server Interface
Request for supplemental information
Required Supplementary Information
Research Science Institute
Research Studies Institute
Research Systems, Inc.
Research Systems, Incorporated
Resources Systems, Inc.
Response-stimulus interval
Response-to-stimulus interval
Retirement and Survivors Insurance
Reusable Surface Insulation
Review of Scientific Instruments
Roadside Interview
Roll Stability Indicator
Roll Systems, Inc.
Rose Software International
Royal Sanitary Institute
Royal Signals Institution
Rural Systemic Initiatives
Rush Sexual Inventory
Ryznar Stability Index
Ryzner Saturation Index