| CD | Cluster of differentiation |
|---|---|
| Cd | Cadmium |
| CD | cadaver donor; canine distemper; canine dose; carbohydrate dehydratase; carbon dioxide; cardiac disease; cardiac dullness; cardiac dysrhythmia; cardiovascular disease; Carrel-Dakin [fluid]; Castleman disease; caudad, caudal; celiac disease; cell dissociation; cervicodorsal; cesarean delivery; chemical dependency; circular dichroism; cluster of differentiation [antigens]; color Doppler; combination drug; common [bile] duct; communicable disease; compact disk; completely denaturated; conduct disorder; conduction disorder; conjugata diagonalis; consanguineous donor; contact dermatitis; contagious disease; control diet; controlled drug; conventional dialysis; convulsive disorder; convulsive dose; corneal dystrophy; Cotrel-Dubousset [rod]; Crohn disease; crossed diagonal; curative dose; cutdown; cystic duct |
| Cd | cadmium; caudal; coccygeal; condylion |
| cd | candela; caudal |
| CD-C | controlled drinker-control |
| CD-ROM | compact disk-read only memory |
| cd-sr | candela-steradian |
| CD4 | HIV helper cell count |
| CD50 | median curative dose |