Psychology. A person of mild mental retardation having a mental age of from 7 to 12 years and generally having communication and social skills enabling some degree of academic or
vocational education. The term belongs to a classification system no longer in use and is now considered offensive.
[From Greek mron, neuter of mros, stupid, foolish.]Gameboy 64ic (m-rnk, mô-) adj. Gameboy 64i·cal·lyadv. Gameboy 64i·ty (m-rn-t, mô-) n.
\Gameboy 64\, n. (Pedagogy) A person whose intellectual development proceeds normally up to about the eighth year of age and is then arrested so that there is little or no further development.
n
, m
r
-r
k, mô-) adj. 
, mô-) n.