F



[ef] /ɛf/

noun, plural F’s or Fs, f’s or fs.
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.
1 .
2.
Photography. .
3.
Music. 2 .
1.
Symbol, Optics. .
1.
.
2.
.
3.
Genetics. .
4.
.
5.
franc; francs.
6.
.
Symbol.
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.

4.
(sometimes lowercase) the medieval Roman numeral for 40.
Compare .
5.
Mathematics.

6.
(sometimes lowercase) Electricity. .
7.
Chemistry. .
8.
(sometimes lowercase) Physics.

9.
Biochemistry. .
Military.
1.
(in designations of aircraft) fighter:
F-105.
1.
.
2.
.
3.
.
4.
.
5.
franc; francs.
6.
.
7.
.
8.
.
1.
(in prescriptions) make.
1.
(in prescriptions) let them be made.
1.
(in prescriptions) let it be made; let there be made.
1.
(in the Netherlands) guilder; guilders.
1.
.
2.
.
3.
.
4.
.
5.
.
6.
.
7.
.
8.
.
9.
.
10.
fluid (ounce).
11.
.
12.
.
13.
.
14.
.
15.
formed of.
16.
.
17.
.
18.
Mathematics. function (of).
Photography.
1.
.
[vahyn-gahrt-nuh r] /ˈvaɪnˌgɑrt nər/
noun
1.
(Paul) Felix (Edler von Münzberg)
[poul fey-liks eyd-luh r fuh n mynts-berk] /paʊl ˈfeɪ lɪks ˈeɪd lər fən ˈmüntsˌbɛrk/ (Show IPA), 1863–1942, Austrian composer, conductor, and writer.
/ɛf/
noun (pl) f’s, F’s, Fs
1.
the sixth letter and fourth consonant of the modern English alphabet
2.
a speech sound represented by this letter, usually a voiceless labio-dental fricative, as in fat
symbol
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
symbol
1.
f-number
symbol
1.
(music)

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
10.
France (international car registration)
abbreviation
1.
fighter: F-106
abbreviation
1.
fathom(s)
2.
female
3.
(grammar) feminine
4.
(pl) ff., FF.. folio
5.
(pl) ff.. following (page)

F 1

The symbol for the element fluorine.

F 2
abbr.
Fahrenheit
F

fluorine
(flr’ēn’)
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.
1.
feminine
2.
focal length
3.
forte
4.
function
1.
Fahrenheit
2.
fail
3.
false
4.
farad
5.
female
6.
filial generation
7.
fine
8.
fluorine
9.
fog
10.
foul
11.
franc
12.
France (international vehicle ID)
13.
Friday
1.
farthing
2.
fine
3.
folio
4.
following
5.
guilder
French
f stop (relative aperture of a lens)

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