Definition of presenile in US English:



  • 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’
    • ‘As I pointed out in a September 26th post, at least one physician sees signs of ‘presenile dementia,’ a precursor to Alzheimers.’
    • ‘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.’
    • ‘This combativeness may have been a sign of presenile dementia.’
    • ‘One doctor thinks he shows signs of ‘presenile dementia,’ or an early onset of Alzheimer's disease.’