psy·cho·pa·thol·o·gy (sī'kō-pə-thŏl'ə-jē, -pă-)
n.

1. The study of the origin, development, and manifestations of mental or behavioral disorders.
2. The manifestation of a mental or behavioral disorder.

psychopathologic psy'cho·path'o·log'ic (-păth'ə-lŏj'ĭk) or psy'cho·path'o·log'i·cal (-ĭ-kəl) adj.
psychopathologist psy'cho·pa·thol'o·gist n.

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The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

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