Of-fic'i-nal or Of-fi-ci'nal, a.

a. [Fr. officinal, Sp. officinal, It. officinale, from Lat. officina, a workshop, contracted from opificina, from opifex, a workman, from opus, work, and facere, to make or do.]

1. Used in a shop, or belonging to it.
2. Having a character or composition established or approved of by the college of medicine, and therefore kept prepared by apothecaries for the use of physicians; as, an officinal medicine.