Source : Webster's Revised Unabridged Dictionary (1913)

Quintal \Quin"tal\, n. [F., fr. Sp. quintal, fr. Ar. qintar a
   weight of 100 lbs., prob. fr. L. centenarius consisting of a
   hundred, fr. centeni a hundred each, fr. centum a hundred.
   See {Hundred}, and cf. {Kentle}.]
   1. A hundredweight, either 112 or 100 pounds, according to
      the scale used. Cf. {Cental}. [Sometimes written and
      pronounced {kentle}.]

   2. A metric measure of weight, being 100,000 grams, or 100
      kilograms, equal to 220.46 pounds avoirdupois.

Source : WordNet®

quintal
     n 1: a unit of weight equal to 100 kilograms
     2: a United States unit of weight equivalent to 100 pounds
        [syn: {hundredweight}, {cwt}, {short hundredweight}, {centner},
         {cental}]