| FRT | Family Relations Test; full recovery time |
|---|---|
| FRV | full-length retroviral [sequence]; functional residual volume |
| FSIQ | full-scale intelligence quotient |
| FT | Fallot tetralogy; false transmitter; family therapy; fast twitch; fatigue trial; fibrous tissue; fin... |
| FTBD | fit to be detained; full-term born dead |