| Acronym | Meaning |
| SMMR | Scanning Multichannel Microwave Radiometer |
| PMP2 | (spin) Projected Moeller-Plesset Second-order (perturbation Theory) |
| SPARC | Scholarly Publishing & Academic Resources Coalition |
| CTTS | Classical T Tauri Star |
| FCD | Fault Consequence Digraph |
| PSTM | Photon Scanning Tunneling Microscopy |
| OBD | Optical Beam Deflection |
| EAM | Electron Acoustic Microscopy |
| ENR | Epoxidized Natural Rubber |
| ABEP | Acetate Buffer Extraction Procedure |