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n. Often Offensive
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Psychiatry) psychiatry the condition of having a low intelligence quotient (below 70)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a developmental disorder characterized in varying degrees by a subnormal ability to learn, a substantially low IQ, and impaired social adjustment.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Below-average intellectual ability resulting from genetic defect, brain injury, or disease, and usually present from birth or early infancy.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||mental retardation - lack of normal development of intellectual capacities|
stupidity - a poor ability to understand or to profit from experience
mental defectiveness, abnormality - retardation sufficient to fall outside the normal range of intelligence
imbecility - retardation more severe than a moron but not as severe as an idiot
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