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Meanings and definitions for OSR
What does OSR stand for? What does OSR mean?
- Operational sex ratio, ratio of reproductively available males to females
- On-stack replacement, used by Jikes RVM, a virtual machine that runs Java programs
- Optical solar reflector, a radiator material for space craft
- OEM Service Release of Windows 95
- Open-source robotics, a branch of robotics
- Leoš Janáček Airport Ostrava, the airport of the city of Ostrava, Czech Republic, IATA code OSR
- Ontario Southland Railway, a short line railway operating in Southern Ontario, Canada
- Texas State Highway OSR (Old San Antonio Road), a state highway in the U.S. state of Texas
- Old School Revival, also known as Old School Renaissance, a movement within tabletop role-playing games
- Owasippe Scout Reservation, a Boy Scout camp in Twin Lake, Michigan, U.S.
- Orchestre de la Suisse Romande, a Swiss symphony orchestra
- Operational Situation Reports, or Einsatzgruppen reports, dispatches of the Nazi death squads
- Ohio State Reformatory, a historic prison in Mansfield, Ohio, U.S.
- Odessa Soviet Republic, a short-lived Soviet republic
- Overseas Service Ribbon, an award of the U.S. military
- OSR Open Systems Resources, Inc. A computer consultancy based in Manchester, NH, USA.
- Oilseed rape, Brassica napus, a plant in the mustard family.
- OSR1, a gene
- OSR2 (gene)
- BDTH2 or OSR#1, an organosulfur compound used as a chelation agent
- OSRIC or Old School Reference and Index Compilation, a Dungeons & Dragons retro-clone
- Mosnov airport (code), Czechoslovakia (former)
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