Meaning of officinal

of•fic•i•nal

Pronunciation: (u-fis'u-nl), [key]
— adj.
  1. kept in stock by apothecaries, as a drug. Cf.(def. 1).
  2. recognized by a pharmacopoeia.
—n.
  1. an officinal medicine.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.