| Acronym | Meaning |
| ACI | Alloy Casting Institute |
| HDAC | Histone Deacetylase |
| PSCI | Partitioned (orbital Hessian) Super-configuration Interaction |
| OSC | Oxygen Storage Capacity |
| CEPT | Cholesterol Ester Transfer Protein |
| RSP | Respirable Suspended Particulates |
| CDFT | Current (as In C.d.) Density Functional Theory |
| LSM | Land Surface Model |
| ABA | Abscisic Acid |
| BZ | 3-quinuclidinyl Benzilate (chemical Warfare Agent) |