| AO | abdominal aorta; achievement orientation; acid output; acridine orange; ankle orthosis; anodal openi... |
|---|---|
| IOD | injured on duty; integrated optical density; interorbital distance |
| OD | Doctor of Optometry; obtained absorbance; occipital dysplasia; occupational dermatitis; occupational... |
| ODU | optical density unit |
| HI Method | Hemagglutination Inhibiting Method; 혈구 응집 억제법 |