adjective
Of or about an office or public trust.
Derived from the proper office or officer, or the appropriate authority; made or communicated by authority
Approved by authority; authorized.
(pharmacology) Sanctioned by the pharmacopoeia; appointed to be used in medicine; officinal.
Discharging an office or function.
Relating to an office, especially a subordinate executive officer or attendant.
Relating to an ecclesiastical judge appointed by a bishop, chapter, archdeacon, etc., with charge of the spiritual jurisdiction.
(informal) True, real, beyond doubt.
(pharmacology) Listed in a national pharmacopeia.
noun
An office holder, a person holding an official position in government, sports, or other organization.