资料来源 : Webster's Revised Unabridged Dictionary (1913)

Tartar \Tar"tar\, n. [F. tartre (cf. Pr. tartari, Sp., Pg., &
   It. tartaro, LL. tartarum, LGr. ?); perhaps of Arabic
   origin.]
   1. (Chem.) A reddish crust or sediment in wine casks,
      consisting essentially of crude cream of tartar, and used
      in marking pure cream of tartar, tartaric acid, potassium
      carbonate, black flux, etc., and, in dyeing, as a mordant
      for woolen goods; -- called also {argol}, {wine stone},
      etc.

   2. A correction which often incrusts the teeth, consisting of
      salivary mucus, animal matter, and phosphate of lime.

   {Cream of tartar}. (Chem.) See under {Cream}.

   {Tartar emetic} (Med. Chem.), a double tartrate of potassium
      and basic antimony. It is a poisonous white crystalline
      substance having a sweetish metallic taste, and used in
      medicine as a sudorific and emetic.

Cream \Cream\ (kr[=e]m), n. [F. cr[^e]me, perh. fr. LL. crema
   cream of milk; cf. L. cremor thick juice or broth, perh. akin
   to cremare to burn.]
   1. The rich, oily, and yellowish part of milk, which, when
      the milk stands unagitated, rises, and collects on the
      surface. It is the part of milk from which butter is
      obtained.

   2. The part of any liquor that rises, and collects on the
      surface. [R.]

   3. A delicacy of several kinds prepared for the table from
      cream, etc., or so as to resemble cream.

   4. A cosmetic; a creamlike medicinal preparation.

            In vain she tries her paste and creams, To smooth
            her skin or hide its seams.           --Goldsmith.

   5. The best or choicest part of a thing; the quintessence;
      as, the cream of a jest or story; the cream of a
      collection of books or pictures.

            Welcome, O flower and cream of knights errant.
                                                  --Shelton.

   {Bavarian cream}, a preparation of gelatin, cream, sugar, and
      eggs, whipped; -- to be eaten cold.

   {Cold cream}, an ointment made of white wax, almond oil, rose
      water, and borax, and used as a salve for the hands and
      lips.

   {Cream cheese}, a kind of cheese made from curd from which
      the cream has not been taken off, or to which cream has
      been added.

   {Cream gauge}, an instrument to test milk, being usually a
      graduated glass tube in which the milk is placed for the
      cream to rise.

   {Cream nut}, the Brazil nut.

   {Cream of lime}.
      (a) A scum of calcium carbonate which forms on a solution
          of milk of lime from the carbon dioxide of the air.
      (b) A thick creamy emulsion of lime in water.

   {Cream of tartar} (Chem.), purified tartar or argol; so
      called because of the crust of crystals which forms on the
      surface of the liquor in the process of purification by
      recrystallization. It is a white crystalline substance,
      with a gritty acid taste, and is used very largely as an
      ingredient of baking powders; -- called also {potassium
      bitartrate}, {acid potassium tartrate}, etc.

资料来源 : WordNet®

cream of tartar
     n : a salt used especially in baking powder [syn: {tartar}, {potassium
         hydrogen tartrate}]