[n] the 6th letter of the Roman alphabet
[n] 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
[n] a degree on the Fahrenheit scale of temperature
[n] 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
[adj] of a temperature scale that registers the freezing point of water as 32 degrees F and the boiling point as 212 degrees F at one atmosphere of pressure; "the Fahrenheit scale"
[adj] (metallurgy); free or impurities; having a high or specified degree of purity; "gold 21 carats fine"