fluo - freq
- flux-monitoring foil
- flux-quantum vortex
- fluxgate aeromagnetometer
- fluxgate magnetometer
- fluxmeter
- fluxoid
- fluxoid pinning
- fluxoid quantization
- fluxoid quantum
- fluxon
- fly-off time
- fly-wheel
- flying path
- flying spot digitizer
- flying-spot microscope
- flywheel
- flywheel action
- flywheel effect
- flywheel force
- Fm