O | Oxygen |
OA | Organic Acid |
OAAF | Open Advanced Authoring Format |
OAC | Optical Absorption Coefficient |
OASIS | Organization for the Advancement of Structured Information Standards |
OBA | Object Behavior Analysis |
OBEM | Object-Based Equipment Model |
OBIC | Optical Beam Induced Current |
OBL | Object-Based Language |
OBSAI | Open Base Station Architecture Initiative |
OC | Open Collector; Open Circuit |
OCAP | OpenCable Application Platform |
OCR | Optical Character Recognition |
OCSP | Online Certificate Status Protocol |
OCXO | Oven Controlled Crystal Oscillator |
OD | Outside Diameter |
ODBC | Open DataBase Connectivity |
ODEND | OR Optical Detected ENDOR |
ODEPR | Optical Detected EPR |
ODI | Open Data-link Interface |
ODMII | Optical Detected Microwave induced Impact Ionization |
ODMR | Optical Detected Magnetic Resonance |
ODP | Ozone Depletion Potential |
ODR | Oscillating Disk Rheometer |
ODRL | Open Digital Rights Language |
ODS | Ozone-Depleting Substances |
OEBR | Optical Edge Bead Removal |
OEE | Overall Equipment Effectiveness |
OEIC | OptoElectronic IC |
OEM | Original Equipment Manufacturer; Office of Emergency Management |
OES | Optical Emission Spectroscopy |
OFDM | Orthogonal Frequency Division Multiplexing |
OFHC | Oxygen-Free High-Conductivity Copper |
OFS | Open File System |
OI | Opto Isolator |
OID | Object Interaction Diagram; Object IDentification |
OIL | Ontology Interface Layer |
OIM | Orientational Imaging Microscopy |
OL | Overlay |
OLB | Outer Lead Bond |
OLE | Object Linking and Embedding |
OLED | Organic Light Emitting Diode |
OLS | Ordinary Least Squares |
OM | Operational Modeling; Optical Microscopy; OrganoMetallic |
OMA | Object Management Architecture; Open Mobile Alliance |
OMG | Object Management Group |
OMS | Optical Mass Spectroscopy |
OMT | Object Modeling Technique; Ortho-Mode Transducer |
OMVPE | Organometallic VPE |
ONE | Open Network Environment (Sun) |
ONP | Optical Nuclear Polarization |
OO | Object-Oriented |
OOA | Object-Oriented Analysis |
OOD | Object-Oriented Design |
OODB | Object-Oriented Data Base |
OODBMS | Object-Oriented Data Base Management System |
OOP | Object Oriented Programming |
OOPS | Object-Oriented Programming System |
OPC | Optical Particle Counter; Optical Proximity Correction |
OPL | Optically Pumped Laser |
OPSE | Optically Pumped Stimulated Emission |
OPW | Orthogonalized Plane Wave |
ORB | Object Request Broker |
ORM | Other Regulated Material |
ORNL | Oak Ridge National Laboratory |
OS | operating System |
OSC | Organic Solderability Coating |
OSCI | Online Services Computer Interface |
OSD | On Screen Display |
OSDH | Optical Shubnikhov-de Haas effect |
OSF | Open Systems Foundation |
OSHA | Occupational Safety Hazards Act |
OSI | Open System Interconnection |
OSP | Organic Solderability Preservative |
OSRM | Office of Standard Reference Materials |
OSS | Object Services Standard; Operation Support System |
OSV | Offset Scan Voting |
OTOI | 3rd order Output Intercept |
OTP | One Time Programmable |
OTPROM | One Time Programmable ROM |
OVD | Outside Vapor Deposition |
OVL | Overlay |
O-D | Zero dimensional |
Oe | Oersted (magnetic intensity unit) |
OpAmp | Operational Amplifier |
OR | Logic term - OR |
OX | OXide |