a person appointed or elected to an office or charged with certain duties.

of or pertaining to an office or position of duty, trust, or authority

official powers.

authorized or issued authoritatively

an official report.

holding office.

appointed or authorized to act in a designated capacity

an official representative.

(of an activity or event) intended for the notice of the public and performed or held on behalf of officials or of an organization; formal

the official opening of a store.

Pharmacology . noting drugs or drug preparations that are recognized by and that conform to the standards of the United States Pharmacopeia or the National Formulary.