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.
Nouns: form â¦. Singular and plural nounsNouns can be either singular or plural. Singular means just one of the person, animal or thing which the noun refers to. Plural means more than one. â¦. Forming the plural of nounsThe rules for making the plural of nouns depend on the spelling and pronunciation. Most nouns form their plural by adding -s: â¦. Nouns: singular and plural â¦. Nouns used only in the singularSome nouns are used only in the singular, even though they end in -s. These include: the names of academic subjects such as classics, economics, mathematics/maths, physics; the physical activities gymnastics and aerobics; the diseases measles and mumps; and the word news: â¦.