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6 definitions found
 for Fe
From The Collaborative International Dictionary of English v.0.48 :

  Ion \I"on\ ([imac]"[o^]n), n. [Gr. 'io`n, neut, of 'iw`n, p. pr.
     of 'ie`nai to go.]
     1. (Elec. Chem.) an atom or goup of atoms (radical) carrying
        an electrical charge. It is contrasted with neutral atoms
        or molecules, and free radicals. Certain compounds, such
        as sodium chloride, are composed of complementary ions in
        the solid (crystalline) as well as in solution. Others,
        notably acids such as hydrogen chloride, may occur as
        neutral molecules in the pure liquid or gas forms, and
        ionize almost completely in dilute aqueous solutions. In
        solutions (as in water) ions are frequently bound
        non-covalently with the molecules of solvent, and in that
        case are said to be solvated. According to the
        electrolytic dissociation theory, the molecules of
        electrolytes are divided into ions by water and other
        solvents. An ion consists of one or more atoms and carries
        one unit charges of electricity, 3.4 x 10^{-10
        electrostatic units, or a multiple of this. Those which
        are positively electrified (hydrogen and the metals) are
        called cations; negative ions (hydroxyl and acidic atoms
        or groups) are called anions.
     Note: Thus, hydrochloric acid ({HCl) dissociates, in aqueous
           solution, into the hydrogen ion, H+, and the chlorine
           ion, Cl-; ferric nitrate, Fe(NO3)3, yields the
           ferric ion, Fe+++, and nitrate ions, NO3-, NO3-,
           NO3-. When a solution containing ions is made part of
           an electric circuit, the cations move toward the
           cathode, the anions toward the anode. This movement is
           called migration, and the velocity of it differs for
           different kinds of ions. If the electromotive force is
           sufficient, electrolysis ensues: cations give up their
           charge at the cathode and separate in metallic form or
           decompose water, forming hydrogen and alkali;
           similarly, at the anode the element of the anion
           separates, or the metal of the anode is dissolved, or
           decomposition occurs. Aluminum and chlorine are
           elements prepared predominantly by such electrolysis,
           and depends on dissolving compounds in a solvent where
           the element forms ions. Electrolysis is also used in
           refining other metals, such as copper and silver. Cf.
           Anion, Cation.
           [Webster 1913 Suppl.]
     2. One of the small electrified particles into which the
        molecules of a gas are broken up under the action of the
        electric current, of ultraviolet and certain other rays,
        and of high temperatures. To the properties and behavior
        of ions the phenomena of the electric discharge through
        rarefied gases and many other important effects are
        ascribed. At low pressures the negative ions appear to be
        electrons; the positive ions, atoms minus an electron. At
        ordinary pressures each ion seems to include also a number
        of attached molecules. Ions may be formed in a gas in
        various ways.
        [Webster 1913 Suppl.]

From The Collaborative International Dictionary of English v.0.48 :

  Symbol \Sym"bol\ (s[i^]m"b[o^]l), n. [L. symbolus, symbolum, Gr.
     sy`mbolon a sign by which one knows or infers a thing, from
     symba`llein to throw or put together, to compare; sy`n with +
     ba`llein to throw: cf. F. symbole. Cf. Emblem, Parable.]
     1. A visible sign or representation of an idea; anything
        which suggests an idea or quality, or another thing, as by
        resemblance or by convention; an emblem; a representation;
        a type; a figure; as, the lion is the symbol of courage;
        the lamb is the symbol of meekness or patience.
        [1913 Webster]
              A symbol is a sign included in the idea which it
              represents, e. g., an actual part chosen to
              represent the whole, or a lower form or species used
              as the representative of a higher in the same kind.
        [1913 Webster]
     2. (Math.) Any character used to represent a quantity, an
        operation, a relation, or an abbreviation.
        [1913 Webster]
     Note: In crystallography, the symbol of a plane is the
           numerical expression which defines its position
           relatively to the assumed axes.
           [1913 Webster]
     3. (Theol.) An abstract or compendium of faith or doctrine; a
        creed, or a summary of the articles of religion.
        [1913 Webster]
     4. [Gr. ? contributions.] That which is thrown into a common
        fund; hence, an appointed or accustomed duty. [Obs.]
        [1913 Webster]
              They do their work in the days of peace . . . and
              come to pay their symbol in a war or in a plague.
                                                    --Jer. Taylor.
        [1913 Webster]
     5. Share; allotment. [Obs.]
        [1913 Webster]
              The persons who are to be judged . . . shall all
              appear to receive their symbol.       --Jer. Taylor.
        [1913 Webster]
     6. (Chem.) An abbreviation standing for the name of an
        element and consisting of the initial letter of the Latin
        or New Latin name, or sometimes of the initial letter with
        a following one; as, C for carbon, Na for sodium
        (Natrium), Fe for iron (Ferrum), Sn for tin (Stannum),
        Sb for antimony (Stibium), etc. See the list of names
        and symbols under Element.
        [1913 Webster]
     Note: In pure and organic chemistry there are symbols not
           only for the elements, but also for their grouping in
           formulas, radicals, or residues, as evidenced by their
           composition, reactions, synthesis, etc. See the diagram
           of Benzene nucleus, under Benzene.
           [1913 Webster]
     Syn: Emblem; figure; type. See Emblem.
          [1913 Webster]

From WordNet (r) 3.0 (2006) :

      n 1: a heavy ductile magnetic metallic element; is silver-white
           in pure form but readily rusts; used in construction and
           tools and armament; plays a role in the transport of oxygen
           by the blood [syn: iron, Fe, atomic number 26]

From V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016) :

         Focus Error (DVD)

From V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016) :

         Forschung und Entwicklung, "F&E"

From V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016) :

         Functional Entity (IN)

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