dement /di-mentˈ/ (rare)

To drive crazy, cause to become insane

To deteriorate mentally, esp in old age

Insane, demented

A demented person

dementˈāte transitive verb (archaic)

To dement

dementˈed adjective

1. Out of one's mind
2. Insane
3. Crazy (informal)
4. Suffering from dementia

dementˈedly adverb

dementˈedness noun

dementia /di-menˈshi-ə/ noun (psychology)

1. Any form of insanity characterized by the failure or loss of mental powers
2. The organic deterioration of intelligence, memory, and orientation, often (senile dementia) in advancing age

dementia praecox or dementia precox /prēˈkoks/ noun

An older name for schizophrenia

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