| AAALAC | American Association for Accreditation of Laboratory Animal Care |
|---|---|
| AACCN | American Association of Critical Care Nurses |
| AACN | American Association of Colleges of Nursing; American Association of Critical-Care Nurses |
| AC | abdominal circumference; abdominal compression; absorption coefficient; abuse case; acetate; acetylc... |
| ACCESS | Ambulatory Care Clinic Effectiveness Systems Study; automated cervical cell screening system |