a syndrome of progressive, irreversible impairment of cognitive function, caused by organic factors and having its onset late in life.
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Would you learn a new language if it would help your health? You may have heard that bilingual children actually have more brainpower than kids who grow up speaking only one language. (Learn more about the cognitive advantages that bilingual kids have here.) But could speaking multiple languages help you at the other end of life as well? Neuroscientists now say yes. Bilingualism appears to …
Origin of senile dementia
First recorded in 1850–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
dementia starting in old age with no precipitating physical cause
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A progressive, abnormally accelerated deterioration of mental faculties and emotional stability in old age, occurring especially in Alzheimer's disease.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.