Source : Webster's Revised Unabridged Dictionary (1913)

Pharmacy \Phar"ma*cy\, n. [OE. fermacie, OF. farmacie,
   pharmacie, F. pharmacie, Gr. ?, fr. ? to administer or use
   medicines, fr. ? medicine.]
   1. The art or practice of preparing and preserving drugs, and
      of compounding and dispensing medicines according to
      prescriptions of physicians; the occupation of an
      apothecary or a pharmaceutical chemist.

   2. A place where medicines are compounded; a drug store; an
      apothecary's shop.

Source : WordNet®

pharmacy
     n 1: the art and science of preparing and dispensing drugs and
          medicines, [syn: {pharmaceutics}]
     2: a retail shop where medicine and other articles are sold
        [syn: {drugstore}, {apothecary's shop}, {chemist's}, {chemist's
        shop}]