| Abbreviation | Definition |
|---|---|
| ACMV | Canadian Veterinary Medical Association |
| ACN | Asociacin Colombiana de Neurociruga |
| ACN | Asociación Colombiana de Neurocirugía |
| ACN | Association Canadienne de Numismatique |
| ACN | Association Canadienne des Neurosciences |
| ACN | Canadian Association for Neuroscience |
| ACN | Canadian Numismatic Association |
| ACN | Colombian Association of Neurosurgery |
| ACNP | American College of Neuropsychopharmacology |
| ACNS | American Clinical Neurophysiology Society |
| ACNS | Auditory Cognitive Neuroscience Society |
| ACNS | Australasian Cognitive Neuroscience Society |
| ACO | Association Canadienne des Optométristes |
| ACO | Association Canadienne des Optomtristes |
| ACO | Association Canadienne des Orthodontistes |
| ACO | Association Canadienne d'Orthopdie |
| ACO | Association Canadienne d'Orthopédie |
| ACO | Canadian Association of Optometrists |
| ACO | Canadian Association of Orthodontists |
| ACO | Canadian Orthopaedic Association |