Chemistry Acronyms

Alphabetical Listing of Chemistry Acronyms

  • NWRI — National Water Research Institute (Burlington
  • NWS — National Weather Service
  • NWSIA — National Water Supply Improvement Association
  • NWWA — National Water Well Association
  • NWWA — Northwest Water Authority (UK)
  • NYSAS — New York Summer Aerosol Study
  • NYSDEC — New York State Department of Environmental Conservation
  • NYSERDA — New York State Energy Research And Development Authority
  • NZRPA — Normalized Zero-range Potential Approxn.
  • O/E — Observed Number/expected Number Ratio = Relative Risk
  • OA — Office of The Administrator
  • OAM — Optical Absorption Microscope
  • OAO — Orthogonalized Atomic Orbital
  • OAP — Optical Atom Probe
  • OAPP — Oxidized Atactic Polypropylene
  • OAQPS — Office of Air Quality Planning And Standards
  • OAQPSTTN — Office of Air Quality Planning And Standards Technology Transfer Network
  • OAR — Office of Air And Radiation (USEPA)
  • OARM — Office of Administration And Resources Management (USEPA)
  • OASCR — Office of Advanced Scientific Computing Research
  • OASIS — Ocean And Atmospheric Sounding Interferometer System
  • OASLM — Optically Addressed Spatial Light Modulator
  • OAW — Oxyacetylene Welding
  • OB/OD — Open Burn/open Detonation
  • OBD — Optical Beam Deflection
  • OBD — On-board Diagnosis
  • OBDD — Ordered Bicontinuous Double-diamond
  • OBE — Optical Bloch Equation
  • OBIC — Optical Beam Induced Current
  • OBK — Oppenheimer-Brinkman-Kramers (approxn. In Atom-ion Electron-exchange Calcns.)
  • OBK2 — Second-order Oppenheimer-Brinkman-Kramers
  • OBK3 — Third-order Oppenheimer-Brinkman-Kramers
  • OBS-MCSC — Optimized Basis Set-multiconfiguration Spin Coupled
  • OC — Office of The Comptroller
  • OC — Oxygen Consumed
  • OCAMS — Orbital Correspondence Analysis In Maximum Symmetry
  • OCAP — Open-channel Air Preheater
  • OCBSE — Orthogonality Constrained Basis Set Expansion Prodedure
  • OCC — Organochlorinated Compound
  • OCCSD — Open-shell Coupled-cluster (with) Single (and) Double (excitations)
  • OCD — Offshore And Coastal Dispersion (modeling of Air Quality)
  • OCD — Overlapping Charge Density (model In Electronic Structure)
  • OCE — One-center Expansion (SCF MO Method)
  • OCE — Overall Control Efficiency
  • OCE-DF — One-center Expansion Dirac-Fock
  • OCEC — Open-channel Electrochromatography
  • OCEE — Overlap Corrected Electronegativity Equalization
  • OCEFT — Office of Criminal Enforcement
  • OCEPA — Office of Communications
  • OCH — Ochkur (approxn. In Electron-atom Scattering Calcns.)
  • OCIS — OSHA Computerized Information System
  • OCIS — Optics Classification And Indexing Scheme
  • OCLC — Online Computer Library Center
  • OCOS — Orbital Charge-ordering State
  • OCP — Organochlorine Pesticide
  • OCPSF — Organic Chemical, Plastics, And Synthetic Fiber Industry
  • OCR — Optical Character Recognition
  • OCRWM — Office of Civilian Radioactive Waste Management
  • OCS — Outer Continental Shelf
  • OCSC — Orbital-charge-self-consistent (in Electronic State Calcn.)
  • OCT — Optical Coherence Tomography
  • OCT — Optical Current Transducer
  • OCT — Optimized Cluster Theory
  • OCTA — Oxidizing Capacity of The Tropospheric Atmosphere
  • OCTG — Oil Country Tubular Goods
  • OCTS — Ocean Color And Temperature Sensor
  • OD — Order-Disorder (in Mineral Structure)
  • OD — Optical Density
  • ODAS — Ocean Data Acquisition System
  • ODC — Optimized Double Configuration
  • ODC — Orientation Distribution Coeffs.
  • ODC — Ozone Depleting Chemical
  • ODCPA — Off-diagonal (disorder) Coherent-potential Approxn.
  • ODES — Ocean Data Evaluation System
  • ODEX — Optical Dynamics Experiments
  • ODF — Orientation Distribution Function
  • ODFS — Optimized Dirac-Fock-Slater
  • ODLRO — Off-diagonal Long-range Order
  • ODLTS — Optical Deep Level Transient Spectroscopy
  • ODMR — Optically Detected Magnetic Resonance
  • ODP — Ocean Drilling Program
  • ODP — Optical Deformation Potential
  • ODP — Ozone Depletion Potential
  • ODPA — 4,4′-oxydiphthalic Anhydride
  • ODPAS — Optically Detected Photoacoustic Spectroscopy
  • ODR — Optical Double Resonance
  • ODS — Oxide Dispersion-strengthened
  • ODS — Ozone Depleting Substances
  • ODSC — Oscillating Differential Scanning Calorimetry
  • ODT — Order-disorder Transition
  • ODU — Optical Density Units
  • ODUS — Ozone Dynamics UV Spectrometer
  • OE — Office of Enforcement
  • OEA — Occupational Exposure Assessment
  • OEAO — Overlap Enhanced Atomic Orbital
  • OEBR — Optical Edge Bead Removal
  • OECA — Office of Enforcement And Compliance Assurance
  • OECD — Organization For Economic Cooperation And Development
  • OECD/SIDS — Organisation For Economic Co-operation And Developments Screening Information Data Sets
  • OEH — One-electron Hamiltonian (quantum Method)

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