Definition of amentia in English:

amentia

noun

mass nounMedicine
dated
  • Severe congenital mental disability.

    • ‘There are probably other types of amentia in which a rare recessive gene is the chief determinant.’
    • ‘Moreover the anxiety about gestation increased and she developed amentia at last.’
    • ‘She herself has been suffering from uremia inherited from her mother and is also registered as suffering from ‘slight amentia’ (mental deficiency) in her own disability certificate.’

Origin

Late Middle English: from Latin, literally ‘madness’, from amens, ament- ‘mad’, from a- ‘without’ + mens ‘the mind’.

Pronunciation

amentia

/əˈmɛnʃə//eɪˈmɛnʃə/