| Acronym | Meaning |
 | RAM | Renormalized Atom Model (for Electronic-structure Calcns.) |
 | CI | Chemical Ionization |
 | SANO | Symmetry-adapted Natural Orbital |
 | RAS | Reflectance Anisotropy Spectroscopy |
 | CFC | Corrosion-fatigue Cracking |
 | IDMS | Isotope Dilution Mass Spectrometry |
 | PEIS | Programmatic Environmental Impact Statement |
 | NREP | National Registry Of Environmental Professionals |
 | AFRICA | Asbestos Fiber Regular Informal Counting Arrangement |
 | MCPI | Monte Carlo Path Integration |