| ADT | Accepted Dental Therapeutics; adenosine triphosphate; admission, discharge, transfer; agar-gel diffu... |
|---|---|
| bd | band; bundle; twice a day [Lat. bis die] |
| bds | to be taken twice a day [Lat. bid in die summendus] |
| bid | twice a day [Lat. bis in die] |
| C/D | cigarettes per day; cup to disc ratio |