Psychological Disorders List - Symptoms and Diagnosis. This psychological disorders list and directory has been abbreviated from the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV). This manual is the most widely used diagnostic criteria for the classification of psychological disorders. Adjustment Disorders.
pest â(plural pests). ( 1 originally) A plague, pestilence, epidemic. 2  An annoying, harmful, often destructive creature. 3  An annoying person.( 4 Britain, slang) Someone with poor social discipline who continually bothers uninterested women.est â(plural pests). ( 1 originally) A plague, pestilence, epidemic. 2  An annoying, harmful, often destructive creature. 3  An annoying person.
Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Pest(noun) a fatal epidemic disease; a pestilence; specif., the plague. 2  Pest(noun) anything which resembles a pest; one who, or that which, is troublesome, noxious, mischievous, or destructive; a nuisance.