| Abbreviation | Definition |
|---|---|
| AD | autonomic dysreflexia |
| AD | autosomal dominant |
| AD | axillary dissection |
| AD | axiodistal |
| AD | drug addict |
| AD | PCP???phencyclidine |
| AD | PCPphencyclidine |
| AD | PCP–phencyclidine |
| ADA | alcohol dependence/abuse |
| ADA | antidiuretic activity |
| ADA | automatic data capture |
| ADAP | Alzheimer???s disease-associated protein, see Alzheimer???s disease |
| ADASS | Association of Directors of Adult Social Services |
| ADC | active diffusion control |
| ADC | adenylate cyclase |
| ADC | adrenal cortex |
| ADC | adult day care |
| ADC | affective disorders clinic |
| ADC | agar diffusion chamber |
| ADC | AIDS-dementia complex |