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oppositional disorder in Medicine

oppositional disorder

(ŏp′ə-zĭshə-nəl)
n.
  1. A behavioral disorder in which an individual, usually between the ages of 3 and 18, exhibits a persistent pattern of disobedient and intentionally provocative opposition to authority figures. It is characterized by consistently negativistic behaviors such as temper tantrums, violation of rules, argumentativeness, and dawdling.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.