| 1. | the sixth letter of the English alphabet, a consonant. |
| 2. | any spoken sound represented by the letter F or f, as in fat, differ, or huff. |
| 3. | something having the shape of an F. |
| 4. | a written or printed representation of the letter F or f. |
| 5. | a device, as a printer's type, for reproducing the letter F or f. |
| 1. | the sixth in order or in a series. |
| 2. | (sometimes lowercase ) (in some grading systems) a grade or mark that indicates academic work of the lowest quality; failure. |
| 3. | Music.
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| 4. | (sometimes lowercase ) the medieval Roman numeral for 40. Compare Roman numerals. |
| 5. | Mathematics.
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| 6. | (sometimes lowercase ) Electricity. farad. |
| 7. | Chemistry. fluorine. |
| 8. | (sometimes lowercase ) Physics.
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| 9. | Biochemistry. phenylalanine. |
| Symbol, Optics. focal length. |
| (in designations of aircraft) fighter: F-105. |
| 1. | (in prescriptions) make. Origin: < L fac ![]() |
| 2. | farad. |
| 3. | farthing. |
| 4. | father. |
| 5. | fathom. |
| 6. | feet. |
| 7. | female. |
| 8. | feminine. |
| 9. | (in prescriptions) let them be made. Origin: < L fīant ![]() |
| 10. | (in prescriptions) fiat. |
| 11. | filly. |
| 12. | fine. |
| 13. | fluid (ounce). |
| 14. | folio. |
| 15. | following. |
| 16. | foot. |
| 17. | form. |
| 18. | formed of. |
| 19. | franc. |
| 20. | from. |
| 21. | Mathematics. function (of). |
| 22. | (in the Netherlands) guilder; guilders. |
| f 2 abbr.
|
| F 1 The symbol for the element fluorine. |
| F 2 abbr.
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Fahr·en·heit (fār'ən-hīt') adj. Abbr. F Of or relating to a temperature scale that registers the freezing point of water as 32° and the boiling point as 212° at one atmosphere of pressure. See Table at measurement. [After Gabriel Daniel Fahrenheit.] |
far·ad (fār'əd, -ād') n. Abbr. F The unit of capacitance in the meter-kilogram-second system equal to the capacitance of a capacitor having an equal and opposite charge of 1 coulomb on each plate and a potential difference of 1 volt between the plates. See Table at measurement. [After Michael Faraday.] |
fluor·ine (flŏŏr'ēn', -ĭn, flôr'-, flōr'-) n. Symbol F A pale-yellow, highly corrosive, poisonous, gaseous halogen element, the most electronegative and most reactive of all the elements, used in a wide variety of industrially important compounds. Atomic number 9; atomic weight 18.9984; freezing point -219.62°C; melting point -223°C; boiling point -188.14°C; specific gravity of liquid 1.108 (at boiling point); valence 1. See Table at element. |
| focal length n. Abbr. f The distance from the surface of a lens or mirror to its focal point. Also called focal distance, focus. |
foul (foul) adj. foul·er, foul·est
v. fouled, foul·ing, fouls v. tr.
foul outSports To be put out of a game for exceeding the number of permissible fouls. foul upTo blunder or cause to blunder because of mistakes or poor judgment. [Middle English, from Old English fūl; see p - in Indo-European roots.]foul'ly adv., foul'ness n. |
franc (frāngk) n. Abbr. F or fr.
[Middle English frank, French gold coin, from Old French franc, from Medieval Latin Francōrum (rēx), (king) of the Franks (from the legend on the first of these coins), genitive pl. of Francus, Frank; see Frank.] |
F
A Nasdaq stock symbol specifying that the stock is a foreign company.
Investopedia Commentary
Nasdaq-listed securities have four or five characters. If a fifth letter appears, it identifies the issue as other than a single issue of common stock or capital stock.
See also: Nasdaq, Stock Symbol
Also spelled: F
f
Used in bond transaction tables in newspapers to indicate a bond that trades flat: Datpnt 8 7/8 06f.
Used in mutual fund transaction tables in newspapers to indicate that the price quotation is derived from the previous day's trading: Gro Inc f.
F 1
The symbol for the element fluorine.
F 2
abbr.
Fahrenheit
f
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F
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