| Abbreviation | Definition |
|---|---|
| CDR | Computerized Digital Radiography |
| CDR | Crude Death Rate |
| CDRH | Center for Devices and Radiological Health |
| CDRI | Canadian Dental Research Institute |
| CDRI | Central Drug Research Institute, India |
| CDS | Clonidine Displacing Substance |
| CDT | Carbohydrate Deficient Transferrin |
| CDT | carbohydrate-deficient transferrin |
| CDT | Certified Dental Technician |
| CDT | Consciousness Deepening Technique |
| CE | Clinical Excellence |
| cea | carcinoembryonic antigen |
| CEA | Carcino-Embryonic Antigen |
| CEAL | Cetacean Ecology and Acoustics Laboratory |
| CEBR | Center of Excellence in Biotechnology Research |
| CED | Caenorhabditis Elegans Death |
| CEEL | Center for Energy Efficient Laboratories |
| CEEL | Cognitive and Experimental Economics Laboratory |
| CEF | chicken embryo fibroblasts |
| CEHL | Community Environmental Health Laboratory |