| Acronym | Meaning |
![](file.png) | OIRM | Office Of Information Resources Management |
![](file.png) | OIT | Oxidative Induction Time |
![](file.png) | OKE | Optical Kerr Effect |
![](file.png) | OLCAO | Orthogonalized Linear Combination Of Atomic Orbitals |
![](file.png) | OLDA | Ordinary Linear Discriminant Analysis |
![](file.png) | OLED | Organic Light-emitting Device |
![](file.png) | OLF | Overland Flow |
![](file.png) | OLGA | On-Line Gas Chemistry Apparatus |
![](file.png) | OLMO | Orthonormal Localized Mol. Orbital |
![](file.png) | OLO | On-line Optimization |
![](file.png) | OLPA | Orbital Local Plasma Approxn. (in Stopping Power Calcn. For Ions By Films) |
![](file.png) | OLPGAA | On-line Prompt Gamma-ray Activation Analysis |
![](file.png) | OLR | Organic Loading Rate |
![](file.png) | OLS | Ordinary Least Squares |
![](file.png) | OLS | Online Library System |
![](file.png) | OLSR | Ordinary Least Squares Regression |
![](file.png) | OLT | Orthotopic Liver Transplantation |
![](file.png) | OMB | Office Of Management And Budget |
![](file.png) | OMBD | Organic Molecular Beam Deposition |
![](file.png) | OMBE | Organic Molecular Beam Epitaxy |
![](file.png) | OMCVD | Organometallic Chemical Vapor Deposition |
![](file.png) | OMEGA | Method In Molecular Orbital Calculations |
![](file.png) | OMEX | Ocean Margin Exchange |
![](file.png) | OMHCE | Organic Material Hydrocarbon Equivalent |
![](file.png) | OMIM | Online Mendelian Inheritance In Man |
![](file.png) | OMMSQA | Office Of Modeling |
![](file.png) | OMNIS | Observatory For Multiflavor Neutrinos From Supernovae |
![](file.png) | OMNMHCE | Organic Material Nonmethane Hydrocarbon Equivalent |
![](file.png) | OMO | Orthogonalized Magnetic Orbital |
![](file.png) | OMO | Orthonormal Molecular Orbital |
![](file.png) | OMP | Optimized Model Potential |
![](file.png) | OMP | Outer Membrane Protein |
![](file.png) | OMPW | Orthogonalized Modulated Plane Wave (wave Function) |
![](file.png) | OMS | Octahedral Molecular Sieve |
![](file.png) | OMTP | Overlap-multipole-expansion Procedure |
![](file.png) | OMVPE | Organometallic Vapor-phase Epitaxy |
![](file.png) | OMZ | Oxygen Min. Zone |
![](file.png) | ONBI | Oligonucleotide Bridge Intercalator |
![](file.png) | ONCV | Orthonormality Constrained Variation (quantum Method) |
![](file.png) | ONDOR | Optical Nuclear Double Resonance |
![](file.png) | ONP | Old Newspaper |
![](file.png) | ONR | Office Of Naval Research |
![](file.png) | ONWI | Office Of Nuclear Waste Isolation |
![](file.png) | OOA | Oxygenated Organic Aerosol |
![](file.png) | OOS | Optical-oscillator Strength |
![](file.png) | OP | Oceanic Plagiogranites |
![](file.png) | OP | Overlap Population |
![](file.png) | OP-AMP | Operational Amplifier |
![](file.png) | OPA | Optical Parametric Amplifier |
![](file.png) | OPACA | Organotin Paint Control Act Of 1988 (US) |