| RC | an electronic circuit containing a resistor and capacitor in series; radiocarpal; reaction center; r... |
|---|---|
| ACI | acceleration index; acoustic comfort index; acute cardiac ischemia; acute coronary infarction; acute... |
| AI | accidental injury; accidentally incurred; adiposity index; aggregation index; allergy and immunology... |
| ARDS | acute respiratory distress syndrome; adult respiratory distress syndrome |
| CRD | carbohydrate-recognition domain; chronic renal disease; chronic respiratory disease; child restraint... |