What's Trending Now
More Trending Words
mental deficiency
noun
Indulge Your Inner Word Nerd
First Known Use of mental deficiency
1856
Medical Dictionary
Law Dictionary
mental deficiency
noun
legal Definition of mental deficiency
:failure in intellectual development that is marked by low intelligence or mental retardation and that may result in an inability to function competently in society
Learn More about mental deficiency
-
Britannica.com: Encyclopedia article about mental deficiency
Seen and Heard
What made you want to look up mental deficiency? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!