Of‐fi″cial (?), a. [L. officialis: cf. F. officiel. See Office, and cf. Official, n.] 1. Of or pertaining to an office or public trust; as, official duties, or routine.
That, in the official marks invested, you
Anon do meet the senate. Shak.
2. Derived from the proper office or officer, or from the proper authority; made or communicated by virtue of authority; as, an official statement or report.
3. (Pharm.) Approved by authority; sanctioned by the pharmacopœia; appointed to be used in medicine; as, an official drug or preparation. Cf. Officinal.
4. Discharging an office or function.
The stomach and other parts official unto nutrition. Sir T. Browne.