Medical Dictionary

oppositional defiant disorder

noun op·po·si·tion·al de·fi·ant disorder
\ˌäp-ə-ˈzish-nəl-di-ˈfī-ənt-, -ən-əl-\

Medical Definition of OPPOSITIONAL DEFIANT DISORDER

:  a disruptive behavior pattern of childhood and adolescence characterized by defiant, disobedient, and hostile behavior especially toward adults in positions of authority—abbreviation ODD

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