| CAO | chronic airway obstruction; coronary artery obstruction |
|---|---|
| CAO2 | arterial oxygen content |
| CaOC | cathodal opening contraction |
| CaOCL | cathodal opening clonus |
| CAOD | coronary artery occlusive disease |
| CAOM | chronic adhesive otitis media |
| CAOT | Canadian Association of Occupational Therapy |
| CaOTe | cathodal opening tetanus |