| FcR | FC receptor |
|---|---|
| FcR | Fc gamma Receptors |
| FCR | Feed conversion ratio |
| FCR | Flexor Carpi Radialis |
| FCR | Food conversion ratio |
| FCR | Fractional catabolic rate |
| FCR | Fuji Computed Radiography |
| FCR | flexor carpi radialis muscle |
| FCR | fractional clearance rate |
| FcRn | Fc receptor |