[1] : The Collaborative International Dictionary of English v.0.48

salt \salt\, n. as. sealt; akin to os.  ofries. salt, d. zout,
   g. salz, icel., sw.,  dan. salt, l. sal, gr. ?, russ. sole,
   ir.  gael. salann, w. halen, of unknown origin. cf. sal,
   salad, salary, saline, sauce, sausage.
   1. the chloride of sodium, a substance used for seasoning
      food, for the preservation of meat, etc. it is found
      native in the earth, and is also produced, by evaporation
      and crystallization, from sea water and other water
      impregnated with saline particles.
      1913 webster

   2. hence, flavor; taste; savor; smack; seasoning.
      1913 webster

            though we are justices and doctors and churchmen . .
            . we have some salt of our youth in us. --shak.
      1913 webster

   3. hence, also, piquancy; wit; sense; as, attic salt.
      1913 webster

   4. a dish for salt at table; a saltcellar.
      1913 webster

            i out and bought some things; among others, a dozen
            of silver salts.                      --pepys.
      1913 webster

   5. a sailor; -- usually qualified by old. colloq.
      1913 webster

            around the door are generally to be seen, laughing
            and gossiping, clusters of old salts. --hawthorne.
      1913 webster

   6. chem. the neutral compound formed by the union of an
      acid and a base; thus, sulphuric acid and iron form the
      salt sulphate of iron or green vitriol.
      1913 webster

   note: except in case of ammonium salts, accurately speaking,
         it is the acid radical which unites with the base or
         basic radical, with the elimination of hydrogen, of
         water, or of analogous compounds as side products. in
         the case of diacid and triacid bases, and of dibasic
         and tribasic acids, the mutual neutralization may vary
         in degree, producing respectively basic, neutral, or
         acid salts. see phrases below.
         1913 webster

   7. fig.: that which preserves from corruption or error; that
      which purifies; a corrective; an antiseptic; also, an
      allowance or deduction; as, his statements must be taken
      with a grain of salt.
      1913 webster

            ye are the salt of the earth.         --matt. v. 13.
      1913 webster

   8. pl. any mineral salt used as an aperient or cathartic,
      especially epsom salts, rochelle salt, or glauber's salt.
      1913 webster

   9. pl. marshes flooded by the tide. prov. eng.
      1913 webster

   above the salt, below the salt, phrases which have
      survived the old custom, in the houses of people of rank,
      of placing a large saltcellar near the middle of a long
      table, the places above which were assigned to the guests
      of distinction, and those below to dependents, inferiors,
      and poor relations. see saltfoot.
      1913 webster

            his fashion is not to take knowledge of him that is
            beneath him in clothes. he never drinks below the
            salt.                                 --b. jonson.
      1913 webster

   acid salt chem.
      a a salt derived from an acid which has several
          replaceable hydrogen atoms which are only partially
          exchanged for metallic atoms or basic radicals; as,
          acid potassium sulphate is an acid salt.
      b a salt, whatever its constitution, which merely gives
          an acid reaction; thus, copper sulphate, which is
          composed of a strong acid united with a weak base, is
          an acid salt in this sense, though theoretically it is
          a neutral salt.

   alkaline salt chem., a salt which gives an alkaline
      reaction, as sodium carbonate.

   amphid salt old chem., a salt of the oxy type, formerly
      regarded as composed of two oxides, an acid and a basic
      oxide. obsolescent

   basic salt chem.
      a a salt which contains more of the basic constituent
          than is required to neutralize the acid.
      b an alkaline salt.

   binary salt chem., a salt of the oxy type conveniently
      regarded as composed of two ingredients analogously to a
      haloid salt, viz., a metal and an acid radical.

   double salt chem., a salt regarded as formed by the union
      of two distinct salts, as common alum, potassium aluminium
      sulphate. see under double.

   epsom salts. see in the vocabulary.

   essential salt old chem., a salt obtained by
      crystallizing plant juices.

   ethereal salt. chem. see under ethereal.

   glauber's salt or glauber's salts. see in vocabulary.

   haloid salt chem., a simple salt of a halogen acid, as
      sodium chloride.

   microcosmic salt. chem.. see under microcosmic.

   neutral salt. chem.
      a a salt in which the acid and base in theory
          neutralize each other.
      b a salt which gives a neutral reaction.

   oxy salt chem., a salt derived from an oxygen acid.

   per salt old chem., a salt supposed to be derived from a
      peroxide base or analogous compound. obs.

   permanent salt, a salt which undergoes no change on
      exposure to the air.

   proto salt chem., a salt derived from a protoxide base or
      analogous compound.

   rochelle salt. see under rochelle.

   salt of amber old chem., succinic acid.

   salt of colcothar old chem., green vitriol, or sulphate
      of iron.

   salt of hartshorn. old chem.
      a sal ammoniac, or ammonium chloride.
      b ammonium carbonate. cf. spirit of hartshorn, under
          hartshorn.

   salt of lemons. chem. see salt of sorrel, below.

   salt of saturn old chem., sugar of lead; lead acetate; --
      the alchemical name of lead being saturn.

   salt of seignette. same as rochelle salt.

   salt of soda old chem., sodium carbonate.

   salt of sorrel old chem., acid potassium oxalate, or
      potassium quadroxalate, used as a solvent for ink stains;
      -- so called because found in the sorrel, or oxalis. also
      sometimes inaccurately called salt of lemon.

   salt of tartar old chem., potassium carbonate; -- so
      called because formerly made by heating cream of tartar,
      or potassium tartrate. obs.

   salt of venus old chem., blue vitriol; copper sulphate;
      -- the alchemical name of copper being venus.

   salt of wisdom. see alembroth.

   sedative salt old med. chem., boric acid.

   sesqui salt chem., a salt derived from a sesquioxide base
      or analogous compound.

   spirit of salt. chem. see under spirit.

   sulpho salt chem., a salt analogous to an oxy salt, but
      containing sulphur in place of oxygen.
      1913 webster
see also:
sal salad salary saline sauce sausage 
above the salt below the salt saltfoot acid salt alkaline salt 
amphid salt basic salt binary salt double salt double 
epsom salts essential salt ethereal salt ethereal glauber's salt 
glauber's salts haloid salt microcosmic salt microcosmic neutral salt 
oxy salt per salt permanent salt proto salt rochelle salt 
rochelle salt of amber salt of colcothar salt of hartshorn spirit of hartshorn 
hartshorn salt of lemons salt of sorrel salt of saturn salt of seignette 
salt of soda salt of lemon salt of tartar salt of venus salt of wisdom 
alembroth sedative salt sesqui salt spirit of salt spirit 
sulpho salt 

[2] : The Collaborative International Dictionary of English v.0.48

double \dou"ble\ du^b"'l, a. oe. doble, duble, double, of.
   doble, duble, double, f. double, fr. l. duplus, fr. the root
   of duo two, and perh. that of plenus full; akin to gr.
   diplo`os double. see two, and full, and cf. diploma,
   duple.
   1. twofold; multiplied by two; increased by its equivalent;
      made twice as large or as much, etc.
      1913 webster

            let a double portion of thy spirit be upon me. -- 2
                                                  kings ii. 9.
      1913 webster

            darkness and tempest make a double night. --dryden.
      1913 webster

   2. being in pairs; presenting two of a kind, or two in a set
      together; coupled.
      1913 webster

            let the swan, on still st. mary's lake,
            float double, swan and shadow.        --wordsworth.
      1913 webster

   3. divided into two; acting two parts, one openly and the
      other secretly; equivocal; deceitful; insincere.
      1913 webster

            with a double heart do they speak.    -- ps. xii. 2.
      1913 webster

   4. bot. having the petals in a flower considerably
      increased beyond the natural number, usually as the result
      of cultivation and the expense of the stamens, or stamens
      and pistils. the white water lily and some other plants
      have their blossoms naturally double.
      1913 webster

   note: double is often used as the first part of a compound
         word, generally denoting two ways, or twice the number,
         quantity, force, etc., twofold, or having two.
         1913 webster

   double base, or double bass mus., the largest and
      lowest-toned instrument in the violin form; the
      contrabasso or violone.

   double convex. see under convex.

   double counterpoint mus., that species of counterpoint or
      composition, in which two of the parts may be inverted, by
      setting one of them an octave higher or lower.

   double court lawn tennis, a court laid out for four
      players, two on each side.

   double dagger print., a reference mark dag next to
      the dagger dagger in order; a diesis.

   double drum mus., a large drum that is beaten at both
      ends.

   double eagle, a gold coin of the united states having the
      value of 20 dollars.

   double entry. see under bookkeeping.

   double floor arch., a floor in which binding joists
      support flooring joists above and ceiling joists below.
      see illust. of double-framed floor.

   double flower. see double, a., 4.

   double-framed floor arch., a double floor having girders
      into which the binding joists are framed.

   double fugue mus., a fugue on two subjects.

   double letter.
      a print. two letters on one shank; a ligature.
      b a mail requiring double postage.

   double note mus., a note of double the length of the
      semibreve; a breve. see breve.

   double octave mus., an interval composed of two octaves,
      or fifteen notes, in diatonic progression; a fifteenth.

   double pica. see under pica.

   double play baseball, a play by which two players are put
      out at the same time.

   double plea law, a plea alleging several matters in
      answer to the declaration, where either of such matters
      alone would be a sufficient bar to the action. --stephen.

   double point geom., a point of a curve at which two
      branches cross each other. conjugate or isolated points of
      a curve are called double points, since they possess most
      of the properties of double points see conjugate. they
      are also called acnodes, and those points where the
      branches of the curve really cross are called crunodes.
      the extremity of a cusp is also a double point.

   double quarrel. eccl. law see duplex querela, under
      duplex.

   double refraction. opt. see refraction.

   double salt. chem.
      a a mixed salt of any polybasic acid which has been
          saturated by different bases or basic radicals, as the
          double carbonate of sodium and potassium,
          nakco3.6h2o.
      b a molecular combination of two distinct salts, as
          common alum, which consists of the sulphate of
          aluminium, and the sulphate of potassium or ammonium.
          

   double shuffle, a low, noisy dance.

   double standard polit. econ., a double standard of
      monetary values; i. e., a gold standard and a silver
      standard, both of which are made legal tender.

   double star astron., two stars so near to each other as
      to be seen separate only by means of a telescope. such
      stars may be only optically near to each other, or may be
      physically connected so that they revolve round their
      common center of gravity, and in the latter case are
      called also binary stars.

   double time mil.. same as double-quick.

   double window, a window having two sets of glazed sashes
      with an air space between them.
      1913 webster
see also:
two full diploma duple double base double bass 
double convex convex double counterpoint double court double dagger 
double drum double eagle double entry bookkeeping double floor 
double flower double double-framed floor double fugue double letter 
double note breve double octave double pica pica 
double play double plea double point conjugate acnodes 
crunodes double quarrel duplex querela duplex double refraction 
refraction double salt nakco3.6h2o double shuffle double standard 
double star double time double-quick double window 

[3] : WordNet (r) 2.0

double salt
     n : a solution of two simple salts that forms a single substance
         on crystallization

Double >> D Words
Double, definition of term: Double
double_pag1.html

Double Reed >> D Words
Double Reed, definition of term: Double Reed
double+reed_pag1.html

Double Over >> D Words
Double Over, definition of term: Double Over
double+over_pag1.html

Double Refracti >> D Words
Double Refracti, definition of term: Double Refracti
double+refracti_pag1.html

Double Standard >> D Words
Double Standard, definition of term: Double Standard
double+standard_pag1.html

Double Up >> D Words
Double Up, definition of term: Double Up
double+up_pag1.html

Double Take >> D Words
Double Take, definition of term: Double Take
double+take_pag1.html

Double Star >> D Words
Double Star, definition of term: Double Star
double+star_pag1.html

Double Negative >> D Words
Double Negative, definition of term: Double Negative
double+negative_pag1.html

Double Jeopardy >> D Words
Double Jeopardy, definition of term: Double Jeopardy
double+jeopardy_pag1.html

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