| Acronym | Definition |
|---|
| CLSI➣Clinical and Laboratory Standards Institute (Wayne, PA) |
| CLSI➣CAD (Computer-Aided Design) Language Systems, Inc. |
| CLSI➣Canadian Light Source Inc. (synchrotron radiation research) |
| CLSI➣Cisco Link Services Interface |
| CLSI➣Canadian Law Symposia Index (database) |
| CLSI➣Capillary-Like Space Involvement (cancer research) |