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OMS abbr.
abbr.	Old Mill Stream Toastmasters Club; Optical Manufacturing Solution; Options Margining System; Order Management System; Owensboro Middle School; Object Management System; Office of Meteorological System; Orbital Maneuvering System (Space); optical multiplex section
abbr., auto.	oil motor sensor
abbr., automat.	office management system
abbr., avia.	on-board maintenance system; open management system; optical multiplexer section layer; opto-electronic multiplex switch; option maintenance management system; onboard maintenance system; onsite maintenance support; operational management and support; operational miniature system; organization maintenance squadron; outboard maintenance system
abbr., earth.sc.	operational meteorological satellite; optical metering structure; orbital mapping system; ore-magmatic systems
abbr., EBRD	operations management system (raf)
abbr., el.	open measurement solution; operation and maintenance subsystem; optical matrix switch; optimized messaging system; orbital multifunction system; overlay measurement system
abbr., el., scient.	Optical Mass Spectroscopy
abbr., energ.syst.	outage management system (MichaelBurov)
abbr., inet.	Or Maybe Socks
abbr., IT	Object Messaging Service; Olympic Messaging System; Open Midi System; Oracle Method Standard; optical memory system; optoelectronic multiplex switch; opportunity management system
abbr., Makarov.	orbital maneuvering system; ovonic memory switch
abbr., med.	Occupational Medical Services; Organic Mental Syndrome; Otomandibular Syndrome; Osteomyelosclerosis; Opsoclonus Myoclonus Syndrome (Alexx B); Oral and Maxillofacial Surgery (iwona); Office of Medical Services
abbr., med., fr.	Organisation Mondiale de la Sante
abbr., media.	On My Side; On My Stereo
abbr., mil.	Operational Mode Summary; Office of Mission Support
abbr., mil., air.def.	orbit-maneuvering system
abbr., mus.	Open Music System
abbr., nano	ordered mesoporous silica
abbr., O&G, sakh.	Operations and Maintenance Supervisor
abbr., oil	oil market simulation; on-board-monitoring and simulation (system); organic mass spectrometry; organic mass spectroscope
abbr., polym.	output per man-shift
abbr., post	Operator Maintenance System (DBCS- obsolete, see TOPS)
abbr., railw.	OTN Management System OTN
abbr., scottish	Operational Monitoring System; Optronic Mast Sensor; Orbiting Manoeuvring System; Ordnance Mounting System; Organisational Maintenance Squadron
abbr., securit.	order management systems
abbr., space	orbit maneuvering system; orbital multifunction satellite
abbr., st.exch.	Oppenheimer Multi Sector Fund
airports, avia.	Omsk, Russia
energ.ind.	overpressure mitigation system
meteorol.	office of meteorological systems
mil.	ocean minesweeper; optical maser system; optimum mode selection; ordnance machine shop; organizational maintenance shop; organizational maintenance squadron; organizational maintenance support; organizational maintenance system
O&G	oil movement and storage
tech.	off-mass-shell; optical modulation system; optoelectronic matrix switch; organic mass spectroscopy; outdoor microphone system; output multiplex synchronizer; output per man shift
OMS. abbr.
abbr., lat.	Omnes ("all")
oms abbr.
econ.	output per manshift