Definition of ad libitum in English:

ad libitum

adverb & adjective

  • more formal term for ad lib
    • ‘Chicory pulp is used in the diet of ad libitum fed pregnant sows to restrict their energy intake.’
    • ‘A large randomised controlled trial is needed to determine if ad libitum of demand/semi-demand feeding of preterm infants affects clinically important outcomes.’


Latin, literally ‘according to pleasure’.


ad libitum

/ad ˈlɪbɪtəm/