| Abbreviation | Definition |
|---|---|
| CSNL | Cognitive Science Net Laboratory |
| CSP | Cell Surface Protein |
| CSPL | Communications and Signal Processing Laboratory |
| CSR | Center for Scientific Review |
| CSR | CytoSkeletal Reorganisation |
| CSRL | Carolina Survey Research Laboratory |
| CSRL | Computer Systems Research Laboratory |
| CSRL | Crop Science Research Laboratory |
| CSRL | Cropping Systems Research Laboratory |
| CSSL | Central Sierra Snow Laboratory |
| CSSL | Communications and Space Sciences Laboratory |
| CSSL | Computational Social Science Laboratory |
| CST | Contraction Stress Test |
| CSTAL | Combat Surveillance Target Acquisition Laboratory |
| CSTR | Continuously Stirred Tank Reactor |
| CSUA | Controlled Substance Use Authoriztion |
| CSUR | Collection de Souches de l'Unite des Rickettsies |
| CT | Cholera Toxin |
| CT | Clinical Trial |
| CT | Computed Tomography |