| CaOC | cathodal opening contraction |
|---|---|
| COC | cathodal opening contraction; coccygeal; combination oral contraceptive |
| KOC | cathodal opening contraction |
| AO | abdominal aorta; achievement orientation; acid output; acridine orange; ankle orthosis; anodal openi... |
| CaOCL | cathodal opening clonus |