[n] an abnormally strong craving
[n] being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs)
dependence - (3 syllables), dependency - (4 syllables), habituation - (5 syllables)
\Ad*dic"tion\, n. [Cf. L. addictio an adjudging.] The state of being addicted; devotion; inclination. ``His addiction was to courses vain.'' --Shak.