| RBW | relative body weight |
|---|---|
| RCA | red cell agglutination; relative chemotactic activity; renal cell carcinoma; right carotid artery; r... |
| RCD | relative cardiac dullness |
| RCDR | relative corrected death rate |
| RCF | red cell ferritin; red cell folate; relative centrifugal field/force; ristocetin cofactor |