f

noun

1. 1

   the 6th letter of the Roman alphabet

2. 2

   the capacitance of a capacitor that has an equal and opposite charge of 1 coulomb on each plate and a voltage difference of 1 volt between the plates

3. 3

   a degree on the Fahrenheit scale of temperature

4. 4

   a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite