| AO | abdominal aorta; achievement orientation; acid output; acridine orange; ankle orthosis; anodal openi... |
|---|---|
| BO | Bachelor of Osteopathy; base of prism out; behavior objective; belladonna and opium; body odor; bowe... |
| DBO | distobucco-occlusal |
| DLO | Diploma in Laryngology and Otology; distolinguo-occlusal |
| DO | Doctor of Osteopathy (one of two fully recognized medical practioners in the US-the other being MD);... |