| Acronym | Meaning |
| LTER | Long Term Ecological Research |
| APMI | American Powder Metallurgy Institute |
| VRLA | Valve-regulated Lead-acid (batteries) |
| DIC | Dissolved Inorganic Carbon |
| CEDRA | Controlled Simple Excitation For Dephasing Rotational Amplitudes |
| MAPKK | Mitogen-activated Protein Kinase Kinase |
| SAROAD | Storage And Retrieval Of Aerometric Data |
| AFMR | American Federation Of Medical Research |
| HRMS | High Resolution Microwave Survey |
| PHD | P-helicity Decoupling Scheme (p=momentum) |