Operation Desert Storm 
Orbiter Docking System 
Ozone Depleting Substances 
Ozone Depleting Substance 
Operational Data Store 
Operation Desert Shield 
Office of Dietary Supplements 
Open Data Services 
Overhead Data Stream 
Officer Development System 
Operating differential subsidy 
Occupant Detection System 
Open Data Server 
Optical Data System 
Optical Data Systems 
Orbit Determination System 
Organized Delivery System 
Oxide Dispersion-Strengthened 
Oakland Distribution Site 
Object Distribution System 
Observatory Duty Scientist 
Obstruction Data Sheet 
octadecyl silica gel 
octadecylsilane 
octadecylsilanized 
octadecylsilica 
octadecylsilyl 
octadecylsilyl silica 
Odd Sex 
Odessa Airlines