| Acronym | Meaning |
![](file.png) | IOSH | Institution Of Occupational Safety And Health |
![](file.png) | IOSRR | Infinite Order Sudden Rigid-rotor Approximation |
![](file.png) | IOSVR | Infinite Order Sudden Vib-rotor Approximation |
![](file.png) | IOW | Integrated Optical Waveguide |
![](file.png) | IP | Inhalable Particle |
![](file.png) | IP | Impact Parameter Approximation |
![](file.png) | IP | Ionization Potential |
![](file.png) | IPA | International Pharmaceutical Abstracts |
![](file.png) | IPA | Independent-pair Approximation |
![](file.png) | IPA | Independent-particle Approximation (in Quantum Calcns. On Solids) |
![](file.png) | IPA | Inverted Perturbation Approach (in Mol. Potential-energy Curves Calcn.) |
![](file.png) | IPAA | Instrumental Photon Activation Analysis |
![](file.png) | IPAC | Infrared Processing And Analysis Center |
![](file.png) | IPAD | Integrated Pulsed Amperometric Detection |
![](file.png) | IPAN | Imaging Passive-active Neutron |
![](file.png) | IPC | Integrated Pollution Control |
![](file.png) | IPC | International Patent Classification |
![](file.png) | IPC | Ion-pair Chromatography |
![](file.png) | IPC | Ischemic Preconditioning |
![](file.png) | IPCC | Intergovernmental Panel On Climate Change |
![](file.png) | IPCM | Isodensity Polarizable Continuum Model [ab Initio Method] |
![](file.png) | IPCS | International Program On Chemical Safety |
![](file.png) | IPDA | Intensified Photodiode Arrays |
![](file.png) | IPDI | Isophorone Diisocyanate |
![](file.png) | IPEM | Ion-photon Emission Microscopy |
![](file.png) | IPES | Inverse Photoemission Spectroscopy |
![](file.png) | IPF | Inorg. Polymer Flocculant |
![](file.png) | IPG | Immobilized PH Gradient |
![](file.png) | IPHAS | The INT/WFC Photometric H-alpha Survey Of The Northern Galactic Plane |
![](file.png) | IPIB | Intense Pulsed Ion Beam |
![](file.png) | IPIC | Intellectual Property Institute Of Canada |
![](file.png) | IPIECA | International Petroleum Industry Environmental Conservation Association |
![](file.png) | IPIRDW | Independent-process (and) Isolated-resonance (approxn. Using) Distorted Waves |
![](file.png) | IPM | Independent Particle Model |
![](file.png) | IPM | Integrated Pest Management |
![](file.png) | IPMA | Ion Probe Microanalysis |
![](file.png) | IPMI | International Precious Metals Institute |
![](file.png) | IPMS | Infinite Periodic Minimum Surfaces |
![](file.png) | IPN | Interpenetrating Polymer Network |
![](file.png) | IPNO | Independent-pair Natural Orbital |
![](file.png) | IPNS | Intense Pulsed Neutron Source |
![](file.png) | IPNSO | Independent-pair Natural Spin Orbital |
![](file.png) | IPOD | International Phase Of Ocean Drilling |
![](file.png) | IPP | Isotactic Polypropylene |
![](file.png) | IPPA | Independent Pair-potential Approximation |
![](file.png) | IPPC | Integrated Pollution Prevention And Control |
![](file.png) | IPPP | Inner Projections (of The) Polarization Propagator (in Calcns. On Nuclear Spin Coupling) |
![](file.png) | IPPP | Isopropylphenyl Phosphate |
![](file.png) | IPPP | Iterative Pariser-Parr-Pople Method |
![](file.png) | IPS | Inclined Plate Settler (for Wastewater Treatment) |