borderline syndrome(redirected from borderline personality disorder)
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Related to borderline personality disorder: histrionic personality disorder, Narcissistic personality disorder
borderline syndrome[′bȯrd·ər‚līn ′sin‚drōm]
An impairment of ego function noted in individuals who have been angry most of their lives and who cannot relate meaningfully to or love other people, and who in consequence develop nonpsychotic but deviant mechanisms, such as withdrawal while expressing angry concern, or showing passive compliance at the price of real involvement, to maintain a precarious mental equilibrium.