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Definition of Mental defectiveness
1. Noun. Retardation sufficient to fall outside the normal range of intelligence.
Generic synonyms: Backwardness, Mental Retardation, Retardation, Slowness, Subnormality
Specialized synonyms: Feeblemindedness
Derivative terms: Abnormal
Lexicographical Neighbors of Mental Defectiveness
Literary usage of Mental defectiveness
Below you will find example usage of this term as found in modern and/or classical literature:
1. Social Problems: A Study of Present-day Social Conditions by Ezra Thayer Towne (1916)
"Cost of mental defectiveness. — The average annual cost for each patient in
institutions for the insane in the United States is about $175. ..."
2. Proceedings of the American Medico-Psychological Association Annual Meeting by American Psychiatric Association (1899)
"There are many kinds of mental defectiveness in society; and there are not only
differences in kind, but of each kind there are many shades and grades. ..."
3. The Psychology of Subnormal Children by Leta Stetter Hollingworth (1920)
"The feeble-minded are persons in whose case there exists from birth or from an
early age mental defectiveness not amounting to imbecility, yet so pronounced ..."
4. The Modern Treatment of Nervous and Mental Diseases by William Alanson White, Smith Ely Jelliffe (1913)
"SPECIAL CHARACTERISTICS OF PREVALENT MENTAL AND NERVOUS DISORDERS Imbecility and
mental defectiveness.—Nervous disorders will be considered chiefly in ..."
5. Psychology for Normal Schools by Lawrence Augustus Averill (1921)
"The other ten per cent of mental defectiveness is due to such accidental causes
as alcoholism of the mother during pregnancy, injuries of the head received ..."
6. Outdoor relief in Missouri: a study of its administration by county officials by Thomas James Riley (1915)
"Twenty-five instances where it was plain that the poverty was primarily chargeable
to mental defectiveness, are described in this section. ..."
7. Problems of Child Welfare by George Benjamin Mangold (1914)
"mental defectiveness is a prominent cause of delinquency among girls, ... At any
rate, mental defectiveness does not imply moral defectiveness, ..."
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