plural of mental model

plural of mental image

plural of elbow mentality

A patient at a mental illness institution.

plural of mental patient

(euphemistic) Having low intelligence. / (euphemistic) Having a mental illness.

A hospital facility designed to treat persons with serious mental disorders, as opposed to disorders of the body.

(slang) Engaging in intellectually stimulating conversation with little or no practical purpose. / (slang) Thought processes that only serve to satisfy oneself.

(UK, slang) An insane person; a nutcase.

(psychology, dated) A developmental disability in which the person has a very low intelligence quotient, usually below 70, plus difficulty in multiple areas of daily life. Evidence of this disability must have appeared before the person reached adulthood for diagnosis.