Abbreviations & Acronyms Dictionary

O-Carbonyl Sulfide
Oakland Christian School
Oaklands Central School
Object Communications Services
Object Compatibility Standard
Observatory Control System
Obsessive-compulsive symptoms
Obsessive-compulsive syndromes
Obstacle Clearance Surface
Obstetric complications
Obstetrical complications
Occipital condyle syndrome
Occupational Course of Study
Ocean Color Scanner
Ocean Sky
Oceanic Computer System
Octachlorostyrene
Octopine synthase
Odyssey Charter School
Offensive Counter Space
Offensive Counterspace
Offical Candidate School
Office Communication Server
Office Communications Server
Office Communications System
Office of Cadastral Survey
Office of Coast Survey
Office of Commodity Standards
Office of Communication Systems
Office of Community Services
Office of Computer Services
Office of Cyber Security
Office of Cyberspace Security
Office of the Chief of Staff
Office of the Chief Scientist
Officer Cadet School
Officer Candidate School
Officer Candidate Schools
Officer Candidates School
Officer Conducting the Serial
Officer's Candidate School
Officers Candidate School
Offshore Constitutional Settlement
Ohio County Schools
Oklahoma Christian School
Oklahoma Climatological Survey
Old Church Slavonic
Oldham County Schools
Olivet Community Schools
On Campus Session
On Chip Sequencer
On the Course Side
On-board Communications Station
On-Card Sequencer
Onboard Checkout System
Onboard Computer System
Ondine's curse syndrome
One Code Solution
Onekama Consolidated Schools
Oneonta City Schools
Online Charging System
Onslow County Schools
Onsted Community Schools
Onteora Central Schools
Opelika City Schools
Open Cabling System
Open canalicular system
Open cholecystectomies
Open Cluster Stack
Open Content Syndication
Open Control Solutions
Open Control System
Open Controls System
Operating Control System
Operational Contractor Support
Operational Control Segment
Operational Control System
Operations and Control Software
Operations Communications System
Operations Control Software
Operations Control System
Operator Communications Software
Operator Control Station
Operator Control System
Opportunity Charge Station
Opposed Cathode System
Optical Calibration Sphere
Optical Centres
Optical Communication System
Optical Contact Sensor
Optical Control Subsystem
Optical Control System
Optical Convergence Switch
Optical Cross-Connect System
Optical-Character Scanner
Optimum Class Size
Oracle Collaboration Suite
Oral contraceptive pills
Oral contraceptive steroid
Oral contraceptive steroids
Oral contraceptives
Oral contrceptives
Oral corticosteroid
Oral corticosteroids
ORANA CATHOLIC SCHOOL
Orange Christian School
Orange County Schools
Orangewood Christian School
Orbit Control System
Orbital Control Systems
Order communication system
Organic cations
Organochlorine compounds
Organochlorine contaminants
Organochlorine pesticides
Organochlorines
Oriental Ceramic Society
Original Chip Set
Originating Call Screening
Originating Communication System
Orleans Community Schools
Orthopaedic Certified Specialist
Orthopedic Certified Specialist
Orthopedic Clinical Specialist
Osteoclast-like cells
Osteoclasts
Ouachita Christian School
Outer Continental Shelf
Outgoing Call Screening
Outpatient clinic substation
Output Control Subsystem
Output Control System
Outside Chip Storage
Ovarian cancer screening
Ovarian carcinomas
Overhead Contact System
Overlap Carrier Selection
Overload Control Subsystem
Overload Control System
Overseas Communications Service
Ovilla Christian School
Ovine chorionic somatomammotrophin
Ovine chorionic somatomammotropin
Oxford Cholesterol Study
Oxford City Schools
Oxford College, Sydney
Oxygen concentrators