| GW | gigaohm [one billion ohms] |
|---|---|
| GW | germ warfare; gigawatt; glycerin in water; gradual withdrawal; group work |
| GWB | general well-being [schedule] |
| GWE | glycerol and water enema |
| GWG | generalized Wegener granulomatosis |
| GWUHP | George Washington University Health Plan |