F - definition of F by the Free Online Dictionary, Thesaurus and Encyclopedia.

F¹

The symbol for the element fluorine.

f¹ or F (

n. pl. f's or F's also fs or Fs

1. The sixth letter of the modern English alphabet.

2. Any of the speech sounds represented by the letter f.

3. The sixth in a series.

4. Something shaped like the letter F.

5. F A grade that indicates failing status.

6. Music

a. The fourth tone in the scale of C major or the sixth tone in the relative minor scale.

b. A key or scale in which F is the tonic.

c. A written or printed note representing this tone.

d. A string, key, or pipe tuned to the pitch of this tone.

f²

abbr.

1. Grammar feminine

2. focal length

3. forte

4. function

f ¹ Physics frequency

f ², f/ or f: f-number

1. Music the fourth note of the scale of C major

2. Fahrenheit

3. farad(s)

4. Chem fluorine

5. Physics force

6. franc(s)

1. Abbreviation of Fahrenheit

2. The symbol for farad.

3. The symbol for fluorine.

ThesaurusLegend: Synonyms Related Words Antonyms

Noun	1.	F - a degree on the Fahrenheit scale of temperature degree Fahrenheit degree - a unit of temperature on a specified scale; "the game was played in spite of the 40-degree temperature"
	2.	F - 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 atomic number 9, fluorine chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter cryolite, Greenland spar - a white mineral consisting of fluorides of aluminum and sodium; a source of fluorine fluorapatite - a form of apatite in which fluorine predominates over chlorine fluor, fluorite, fluorspar - a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely halogen - any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions
	3.	F - 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 farad capacitance unit - a measure of the capacity of a circuit component to store charge millifarad - a unit of capacitance equal to one thousandth of a farad abfarad - a capacitance unit equal to one billion farads
	4.	f - the 6th letter of the Roman alphabet Latin alphabet, Roman alphabet - the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters"