| ACh | Acetyl-Choline |
|---|---|
| ACH | acetylcholine; achalasia; active chronic hepatitis; adrenocortical hormone; amyotrophic cerebellar hypoplasia; arm girth, chest depth, and hip width [nutritional index] |
| ACh | acetylcholine |
| ACHA | American College of Hospital Administrators |
| AChA | anterior choroidal artery |
| AChE | Acetyl-Cholin-Esterase |
| ACHE | American College of Healthcare Executives; American Council for Headache Education |
| AChE | acetylcholinesterase |
| ACHOO | autosomal dominant compelling helio-ophthalmic outburst [syndrome] |
| ACHPR | Agency for Health Care Policy and Research |