| CH50 | 50% hemolyzing dose of complement |
|---|---|
| CID | cellular immunodeficiency; charge injection device; chick infective dose; combined immunodeficiency ... |
| DAP | data acquisition processor; depolarizing afterpotential; diabetes-associated peptide; diaminopimelic... |
| DD | dangerous drug; data definition; day of delivery; degenerated disc; degenerative disease; delusional... |
| DDD | AV universal [pacemaker]; defined daily dose; degenerative disc disease; dehydroxydinaphthyl disulfi... |