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dependence
(redirected from psychoactive substance dependence)

   Also found in: Dictionary/thesaurus, Medical, Legal 0.03 sec.
dependence [di′pen·dəns]
(medicine)
Habituation to, abuse of, or addiction to a substance.
(statistics)
The existence of a relationship between frequencies obtained from two parts of an experiment which does not arise from the direct influence of the result of the first part on the chances of the second part but indirectly from the fact that both parts are subject to influences from a common outside factor.


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