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Meaning of F

Pronunciation:  ef, ef

WordNet Dictionary
  1. [n]  the 6th letter of the Roman alphabet
  2. [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
  3. [n]  a degree on the Fahrenheit scale of temperature
  4. [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
  5. [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"
  6. [adj]  (metallurgy); free or impurities; having a high or specified degree of purity; "gold 21 carats fine"

F is a 1 letter word that starts with F.


 Synonyms: atomic number 9, degree Fahrenheit, Fahr, fahrenheit, farad, fine, fluorine, pure
 Antonyms: c, celsius, centigrade
 See Also: abfarad, alphabetic character, capacitance unit, chemical element, cryolite, degree, element, fluor, fluorapatite, fluorite, fluorspar, gas, Greenland spar, halogen, letter, letter of the alphabet, millifarad, Roman alphabet



Webster's 1913 Dictionary
\F\ ([e^]f).
1. F is the sixth letter of the English alphabet, and a
   nonvocal consonant. Its form and sound are from the Latin.
   The Latin borrowed the form from the Greek digamma ?,
   which probably had the value of English w consonant. The
   form and value of Greek letter came from the Ph[oe]nician,
   the ultimate source being probably Egyptian.
   Etymologically f is most closely related to p, k, v, and
   b; as in E. five, Gr. pe`nte; E. wolf, L. lupus, Gr.
   ly`kos; E. fox, vixen; fragile, break; fruit, brook, v.
   t.; E. bear, L. ferre. See Guide to Pronunciation,
   [sect][sect] 178, 179, 188, 198, 230.

2. (Mus.) The name of the fourth tone of the model scale, or
   scale of C. F sharp (F [sharp]) is a tone intermediate
   between F and G.

{F clef}, the bass clef. See under {Clef}.

Biology Dictionary
  1. The portion of the immunoglobulin or antibody molecule which contains the binding site for antigens. The exact sequence of amino acids in the area varies widely from molecule to molecule to accommodate a wide variety of antigens which the body may encounter. There are two such regions on each molecule (individually called Fab fragments or F-ab fragments). The molecule is shaped like the letter Y and the F(ab)2 fragments are located on the upper halves of the two fork parts. (The rest of the molecule, the stem and the lower parts of the forks, are the Fc fragment).
  2. A fragment of an antibody protein which includes the antigen-binding portions but not the Fc section. They can be produced by treating whole antibodies with proteases that will specifically cleave off the Fc section.