An epoch-making study of the hereditary transmission of mental deficiency in a degenerate family.
I have no question that he has an obscure sense of some mental deficiency.
Or have you offered yourself and been rejected on the grounds of mental deficiency?
Alcoholism in the parents is frequently the cause of mental deficiency.
But it is not incumbent on you to share that mental deficiency.
What distinctions can we draw between the different degrees of mental deficiency?
The lack of tension and elasticity gives rise to mental deficiency and to grave inadaptability which produces misery and crime.
The classification in the region of mental deficiency itself is confronted by the same difficulty.
Even if the patient recovers, whether as the result of operation or not, deaf-mutism or mental deficiency frequently occurs.
There are innumerable grades of mental deficiency ranging from somewhat below average intelligence to profound idiocy.
mental deficiency n.
See mental retardation.