\Of*fic"i*nal\, a. [F., fr. L. officina a workshop,
contr.fr. opificina, fr. opifex a workman; opus work + facere
to make or do.]
1. Used in a shop, or belonging to it. [Obs. or R.]
   --Johnson.

2. (Pharm.) Kept in stock by apothecaries; -- said of such
   drugs and medicines as may be obtained without special
   preparation or compounding; not magistral.

Note: This term is often interchanged with official, but in
      strict use officinal drugs are not necessarily
      official. See {Official}, a., 3.