Source : Webster's Revised Unabridged Dictionary (1913)

Centner \Cent"ner\, n. [Cf. G. centner a hundred-weight, fr. L.
   centenarius of a hundred, fr. centum a hundred.]
   1. (Metal. & Assaying) A weight divisible first into a
      hundred parts, and then into smaller parts.

   Note: The metallurgists use a weight divided into a hundred
         equal parts, each one pound; the whole they call a
         centner: the pound is divided into thirty-two parts, or
         half ounces; the half ounce into two quarters; and each
         of these into two drams. But the assayers use different
         weights. With them a centner is one dram, to which the
         other parts are proportioned.

   2. The commercial hundredweight in several of the continental
      countries, varying in different places from 100 to about
      112 pounds.

Source : WordNet®

centner
     n 1: a unit of weight equal to 100 kilograms [syn: {hundredweight},
           {metric hundredweight}, {doppelzentner}]
     2: in some European countries: a unit of weight equivalent to
        50 kilograms
     3: a United States unit of weight equivalent to 100 pounds
        [syn: {hundredweight}, {cwt}, {short hundredweight}, {cental},
         {quintal}]