| Acronym | Meaning |
 | RIMS | Resonance Ionization Mass Spectrometry |
 | SMA | Shape Memory Alloy |
 | ALEXIS | Array Of Low Energy X-Ray Imaging Sensors |
 | SOP/EA | Split-operator Propagator (for) Electronically Adiabatic (phenomena) |
 | PRRSV | Porcine Reproductive And Respiratory Syndrome Virus |
 | PIES | Partial Integration Exterior Scaling (in Calcns. On Resonance Positions And Lifetimes |
 | CCPA | Cluster Coherent Potential Approximation (for Electronic Structure Calcns.) |
 | PTEF | Photochem. Thermodynamic Efficiency Factor |
 | WISE | Wide-field Infrared Survey Explorer |
 | HKS | Hohenberg-Kohn-Sham (quantum Theory) |