Definition of presenile in English:

presenile

Syllabification: pre·se·nile
Pronunciation: /prēˈsēˌnīl, -ˈsenˌīl
 
/

adjective

Occurring in or characteristic of the period of life preceding old age: the factors that may predispose women to presenile Alzheimer’s disease are not known
More example sentences
  • Of the 473 accepted cases of dementia among men who died 10 or more years after their smoking habits had first been recorded, 95 were described as due to Alzheimer's disease or to presenile dementia.
  • As I pointed out in a September 26th post, at least one physician sees signs of ‘presenile dementia,’ a precursor to Alzheimers.
  • One doctor thinks he shows signs of ‘presenile dementia,’ or an early onset of Alzheimer's disease.

Definition of presenile in:

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Word of the day apposite
Pronunciation: ˈapəzɪt
adjective
apt in the circumstances or relation to something