| Abbreviation | Definition |
|---|---|
| CFI | chemotactic factor inactivator |
| CFI | colour flow imaging |
| CFI | Community Finance Initiative |
| CFI | community fluorosis index |
| CFI | complement fixation inhibition |
| CFISSA | Centrally Funded Initiatives and Services and Special Allocations |
| CFN | Certified Forensic Nurse |
| CFN | Community Foundation Network |
| CFO | Count Fingers Only |
| CfPS | Centre for Public Scrutiny |
| CFR | capillary filtration rate |
| CFR | Capital Financing Reserve |
| CFR | case-fatality ratio |
| CFR | chronic renal failure |
| CFR | citrovorum factor rescue |
| CFR | complement fixation reaction |
| CFR | coronary flow reserve |
| CFR | craniofacial resection |
| CFR | crude fatality rate |
| CFR | cyclic flow reduction |