OTSR

AcronymDefinition
OTSROptimum Track Ship Routing
OTSROver The Shoulder Restraints (amusement rides)
OTSROmni Transmit Sector Receive
OTSROffice of Transportation Security Redress (US Transportation Security Administration)
OTSROther Than Selected Reserve (US Air Force)
OTSROrnamental Transplant Soil and Root inoculants (mycorrhizae inoculants for horticultural use)