Meaning of Alzheimer's disease

Alz'hei•mer's disease"

Pronunciation: (älts'hī-murz, alts'-, ôlts'-), [key]
— Pathol. Pathol.
  1. a common form of dementia of unknown cause, usually beginning in late middle age, characterized by memory lapses, confusion, emotional instability, and progressive loss of mental ability.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.