| a chattering or flighty, light-headed person. |
| a scrap or morsel of food left at a meal. |
| f | |
| —symbol for | |
| 1. | music forte: an instruction to play loudly |
| 2. | physics frequency |
| 3. | (formerly in the Netherlands) guilder |
| 4. | maths function (of) |
| 5. | physics femto- |
| 6. | chess See algebraic notation |
| [(sense 3) from Dutch: florin] | |
| f, f/ or f: | |
| —symbol for | |
| f-number | |
| f/, f/ or f: | |
| —symbol for | |
| f:, f/ or f: | |
| —symbol for | |
| f, f/ or f: | |
| —symbol for | |
| f-number | |
| f/, f/ or f: | |
| —symbol for | |
| f:, f/ or f: | |
| —symbol for | |
| F | |
| —symbol for | |
| 1. | music |
| a. a note having a frequency of 349.23 hertz (F above middle C) or this value multiplied or divided by any power of 2; the fourth note of the scale of C major | |
| b. a key, string, or pipe producing this note | |
| c. the major or minor key having this note as its tonic | |
| 2. | Fahrenheit |
| 3. | Fellow |
| 4. | chem fluorine |
| 5. | Helmholtz function |
| 6. | physics force |
| 7. | franc(s) |
| 8. | farad(s) |
| 9. | genetics a generation of filial offspring, F1 being the first generation of offspring, F2 being the second generation, etc |
| —abbreviation for | |
| 10. | France (international car registration) |
| f. or F. | |
| —abbreviation for , ff., FF., ff. | |
| 1. | fathom(s) |
| 2. | female |
| 3. | grammar feminine |
| 4. | folio |
| 5. | following (page) |
| F. or F. | |
| —abbreviation for | |
| f. or F. | |
| —abbreviation for , ff., FF., ff. | |
| 1. | fathom(s) |
| 2. | female |
| 3. | grammar feminine |
| 4. | folio |
| 5. | following (page) |
| F. or F. | |
| —abbreviation for | |
| F- | |
| —abbreviation for | |
| fighter: F-106 | |
F 1
The symbol for the element fluorine.
F 2
abbr.
Fahrenheit
F
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fluorine (fl r'ēn') Pronunciation Key
Symbol F A pale-yellow, poisonous, gaseous element of the halogen group. It is highly corrosive and is used to separate certain isotopes of uranium and to make refrigerants and high-temperature plastics. It is also added in fluoride form to the water supply to prevent tooth decay. Atomic number 9; atomic weight 18.9984; melting point -223°C; boiling point -188.14°C; specific gravity of liquid 1.108 (at boiling point); valence 1. See Periodic Table. |
f
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F
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f.
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| F. French |
| f/ f stop (relative aperture of a lens) |