| Acronym | Meaning |
 | PBC | Periodic Bond Chain |
 | NLPLS | Nonlinear Partial Least Squares |
 | ASEC | Applied Solar Energy Corporation |
 | PWBA | Plane-Wave Born Approximation |
 | ENC | Effective Nuclear Charge (model For Mol. Property Calcns.) |
 | LCVD | Laser-induced Chemical Vapor Deposition |
 | ASPCR | Allele-specific Polymerase Chain Reaction |
 | ENDOR | Electron Nuclear Double Resonance |
 | BIOS | Biological Innovation For Open Society |
 | WATR | Water Attenuation By Transverse Relaxation |