| Acronym | Meaning |
| IDAF | Interacting Distributed Approximating Function (propagator |
| TCF | Totally Chlorine-free [in Pulp Industry] |
| RCM | Radiative Convective Model (of Climate) |
| ROSE | Residual Organic Substance Emissions |
| CNT | Carbon Nanotube |
| PCDW | Pluvinage Continuum Distorted Wave ( A Wave Function In Calcns. On Atomic And Molecular Collisions) |
| ACORE | Atomic Core Orbitals |
| CGCG | Central Giant Cell Granuloma |
| CHAART | Center For Health Applications Of Aerospace-Related Technologies |
| EIE | Easily Ionized Element |