| Acronym | Meaning |
| ORBIT | On-line Retrieval Of Bibliographic Information Timesharing |
| CNIDR | Clearinghouse For Networked Information Discovery And Retrieval |
| AIEMP | Ab Initio Embedding Model Potential |
| AEC | Atomic Energy Commission |
| HFA | Humic And Fulvic Acids |
| VCC-RIOS | Vibrational Close-coupled-rotational Infinite Order Sudden |
| EVA | Extravehicular Activity (related To Spacecraft) |
| FSM | Folded-sheet Mesoporous Material |
| TMA | Thermomagnetic Analysis |
| VBR | Variational Basis Representation (in Quantum Calcns.) |