| Abbreviation | Definition |
|---|---|
| CAS | Command Augmentation System |
| CAS | Control Augmentation System |
| CASE | Computer-Aided Software Engineering |
| CASO | Cancellation Addendum Sales Order |
| CASP | CDS (Central Data System) Application Support Program |
| CASS | CITE (Cargo Integration Test Equipment) Augmentation Support System |
| CATEG | CATEGory |
| CATS | Cheap Access To Space |
| CATS | Computer-Aided Tracking System |
| CAU | Command Acquisition Unit |
| CAU | Command Activation Unit |
| CAU | Customer Acquisition Unit |
| CAUSE | Computer-Aided User-oriented System Evaluation |
| CAUT | CAUTion |
| CAV | Constant Angular Velocity |
| CAV | Continuing Assessment Visit |
| CB | Center of Buoyancy |
| CB | Circuit Breaker |
| CB | Constant Bandwidth |
| CB/AC | Circuit Breaker, Alternating Current only |