| TF | free thyroxine; tactile fremitus; tail flick [reflex]; temperature factor; testicular feminization; ... |
|---|---|
| FTC | Federal Trade Commission; follicular thyroid carcinoma; frequency threshold curve; frequency tuning ... |
| HFO | high-frequency oscillator; high-frequency oscillatory [ventilation] |
| MFO | medium frequency oscillator; mixed function oxidase |
| MRO | master reference oscillator; medical review officer; minimal recognizable odor; muscle receptor orga... |