| FW | Felix-Weil [reaction]; Folin-Wu [reaction]; fragment wound |
|---|---|
| Fw | F wave |
| fw | fresh water |
| FWA | Family Welfare Association |
| FWB | full weight bearing |
| FWHM | full width at half maximum |
| FWPCA | Federal Water Pollution Control Administration |
| FWR | Felix-Weil reaction; Folin-Wu reaction |
| FWTM | full width tenth maximum |