addiction addiction /əˈdɪkʃən/

noun

1. (Roman law) a formal award by a magistrate of a thing or person to another person (as the award of a debtor to his creditor); a surrender to a master  ( addiction )
   (Roman law) a formal award by a magistrate of a thing or person to another person (as the award of a debtor to his creditor); a surrender to a master
    Under Roman law addiction was the justification for slavery
   under Roman law addiction was the justification for slavery
   
2. An abnormally strong craving  ( addiction )
   an abnormally strong craving
   
3. Being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)  ( addiction , dependance [Non-standard] , dependence , dependency , habituation )
   being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)