| Abbreviation | Definition |
|---|---|
| CLS | complement lysis sensitivity |
| CLS | confocal laser scanning |
| CLS | Cornelia de Lange syndrome |
| CLS | cytotoxic lymphocytes |
| CM | calmodulin |
| CM | cardiac muscle |
| CM | cardiac myocyte |
| CM | cardiac myxoma |
| CM | cardiomegaly |
| CM | cardiomyopathy |
| CM | carpometacarpal |
| CM | cavernous malformation |
| CM | cell membrane |
| CM | centimetre |
| CM | cerebral metastases |
| CM | cervical myelopathy |
| CM | charge master |
| CM | Chinese medicine |
| CM | chronic meningitis |
| CM | chronic migraine |