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n. A psychological disorder characterized by phobias, obsessions, compulsions, or excessive anxiety. No longer in scientific use.

n. Weakness, through exhaustion, of the mental faculties; mental exhaustion.

"By the term psychasthenia is understood a group of conditions in which the bodily symptoms, such as fatigue, sleeplessness, loss of appetite, etc., are either not so marked as in neurasthenia, or else are overshadowed by other, more distinctly mental symptoms."

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