-
academic & science | universities
-
miscellaneous | food
-
miscellaneous | aircraft & aviation
-
medical | british medicine
-
Output-based Specification
computing | software
-
miscellaneous | unclassified
-
governmental | nasa
-
medical | physiology
-
miscellaneous | unclassified
-
Organization For Black Struggle
miscellaneous | unclassified
-
business | accounting
-
computing | databases
-
Olympic Broadcasting Services
community | sports
-
Organisational Breakdown Structure
miscellaneous | unclassified
-
Operational Bioinstrumentation System
governmental | nasa
-
miscellaneous | unclassified
-
miscellaneous | unclassified
-
Orbiting Brown-dwarf Star
academic & science | astronomy
-
miscellaneous | unclassified
-
computing | software
-
medical | british medicine
-
miscellaneous | unclassified
-
miscellaneous | unclassified
-
governmental | transportation
-
governmental | nasa
-
regional | airport codes
-
miscellaneous | unclassified
-
miscellaneous | unclassified
-
medical | physiology
-
Ocala Breeders' Sales Company
business | companies & firms
-
business | companies & firms
-
computing | software
-
Obstructive Bowel Syndrome
medical | british medicine
-
miscellaneous | unclassified
-
miscellaneous | unclassified
-
business | companies & firms
-
medical | physiology
-
medical | british medicine
-
Open Broadcaster Software
computing | software
-
governmental | military
-
miscellaneous | unclassified
-
computing | file extensions
-
medical | physiology
-
miscellaneous | aircraft & aviation
-
governmental | military
-
Operational Biomed Sensors
governmental | nasa
-
Organization Breakdown Structure
miscellaneous | manufacturing
-
medical | british medicine
-
academic & science | libraries
-
Organization Of Black Screenwriters
miscellaneous | unclassified
-
miscellaneous | unclassified
-
Organization Breakdown Structure
business | general
-
Overbrook School For The Blind
community | non-profit organizations
-
academic & science | ocean science
-
Olympic Broadcasting Services
community | media
-
miscellaneous | unclassified
-
miscellaneous | unclassified
-
academic & science | ocean science
-
Obliterative Bronchiolitis Syndrome
medical | british medicine
-
Operational Biomedical System
governmental | nasa
-
community | law & legal