Source : Webster's Revised Unabridged Dictionary (1913)

Drachma \Drach"ma\, n.; pl. E. {Drachmas}, L. {Drachm[ae]}. [L.,
   fr. Gr. ?. See {Dram}.]
   1. A silver coin among the ancient Greeks, having a different
      value in different States and at different periods. The
      average value of the Attic drachma is computed to have
      been about 19 cents.

   2. A gold and silver coin of modern Greece worth 19.3 cents.

   3. Among the ancient Greeks, a weight of about 66.5 grains;
      among the modern Greeks, a weight equal to a gram.

Source : WordNet®

drachma
     n 1: a unit of apothecary weight equal to an eighth of an ounce
          or to 60 grains [syn: {dram}, {drachm}]
     2: formerly the basic unit of money in Greece [syn: {Greek
        drachma}]
     [also: {drachmae} (pl)]