| Abbreviation | Definition |
|---|---|
| BWDL | Biological Warfare Defense Laboratory |
| C | Calicivirus |
| C | Cholesterolin |
| C | Cleanse |
| C | Cure |
| C&S | culture and sensitivities |
| C&S | culture and sensitivity |
| C. | Centigrade |
| C4a | Laboratory blood test |
| ca | cold adapted |
| CA | Coxsackievirus A |
| c-a | cold-adapted |
| CAARS | Connors' Adult ADHD Rating Self Report |
| CAAT | Controlled Amino Acid Therapy |
| CAAX | Cysteine; Aliphatic Amino acid, any amino acid (X) |
| CACL | Carbonate Aquifer Characterization Laboratory |
| CACL | Clinical and Analytical Core Laboratory |
| CACS | Collaboratory for Advanced Computing and Simulations |
| CAD | Caspase Activated Deoxyribonuclease |
| CADRE | Centre for Aids Development Research end Evaluation |