Found 5 full forms for CELSS
| Term | Full Form | Category |
|---|---|---|
| CELSS | Closed Ecological Life Support Systems 
| Others |
| CELSS | Columbia Experimental Laboratory in the Social Sciences
| Others |
| CELSS | Controlled ecological life support system
| Others |
| CELSS | Controlled Ecological Life Support Systems
| Others |
| CELSS | Controlled Environment and Life Support System
| Others |