Oxide Dispersion Strengthened (AD)
Civic Democratic Party (Czech Rep.) - Political party (PSAP)
Obstacle Detection System
Occupational Demand Schedule (ADA)
Ocean Data Station - Marine science (MSC)
Octadecylsilane - Organic chemistry
Octadecyltrimethyloxysilane (SAUS)
Octadeyl(dimethyl)chlorosilane - Organic chemistry
Odessa - Ukraine - Airport symbol (OAG)
Odessa - Washington - Seismograph station code, US Geological Survey (SEIS)
Odessa Explorations Ltd. - Vancouver Stock Exchange symbol
Odometer Disclosure Statement
Odyssey Boats Inc., Broomfield, CO - Manufacturer code for watercraft hull identification number (USCG)
Office Dialog System - Computer science
Office for Domestic Shipping - Department of Commerce
Office of Defender Services (AD)
Office of Dietary Supplements (SAUS)
Office of Disability Services (SAUS)
Old Dominion Speedway - Auto racing
One Day Sequence (CERES)
One Digit Subtractor (SAUS)
Open Database Server - Computer science
Open Data Service - Electronics systems testing
Open Data Services (SAUS)
Open Distributed System (RALS)
Open Domain Server (XSAL)
Operating-Differential Subsidy - Authorized by Merchant Marine Act of 1936
Operational Data Store - Computer science (ITCA)
Operational Data Summary (AAG)
Operational Display System (SAUS)
Operation Desert Shield - Military technology (DDF)
Operation Desert Spring - Military
Operation Desert Storm - Military
Operations Directorate Station (SAA)
Optical Data Systems (SAUS)
Optical Design System - Automotive lighting
Optical Discrimination System (SAUS)
Optical Disk Storage (SAUS)
Optical Disk System (SAUS)
Optical Display System (SAUS)
Optical Docking System
Optical Document Sorter (SAUS)
Optimal Decisions System
Orbiter Docking System - NASA
Orbiter Dynamic Simulator - NASA
Orders - Telegraphy (PCTE)
Ordnance Delivery Schedule - Navy (NG)
Orton Dyslexia Society (EA)
Osric Dining Society (EA)
Output Data Set (SAUS)
Output Data Store - Computer science (TIMI)
Output Data Strobe
Overall Distance Standard - for golf balls - Adopted by the United States Golf Association in 1976
Overdrive Disable Switch - Automotive engineering
Overhead Data Stream (SAUS)
Oxidative-Desulfurization - Fuel technology
Oxide Dispersion Strengthened - Ferrous metallurgy
Oxide Dispersion Strengthening (ODA)
Oxygen Depletion Sensor
Oxygen Dispersion Strengthening (SAUS)
Ozone-Depleting Substance (AAGC)
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