Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

unofficial

play
adjective un·of·fi·cial \ˌən-ə-ˈfish-əl\

Medical Definition of unofficial

  1. :  not official; specifically :  of, relating to, or being a drug not described in the United States Pharmacopeia and National Formulary—compare nonofficial, official





Seen and Heard

What made you want to look up unofficial? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to destroy or remove completely

Get Word of the Day daily email!