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mensurable
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mental
mental age
mental block
mental challenge
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mental challenge
men·tal chal·lenge (plural men·tal chal·lenges)


noun 
Definition:
 
a condition that limits the ability to learn and to function independently, as a result of congenital causes, brain injury, or disease
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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