Source : Webster's Revised Unabridged Dictionary (1913)

Dispensatory \Dis*pen"sa*to*ry\, n.; pl. {Dispensatories}.
   A book or medicinal formulary containing a systematic
   description of drugs, and of preparations made from them. It
   is usually, but not always, distinguished from a
   pharmacop[oe]ia in that it issued by private parties, and not
   by an official body or by government.