Back to Pegasus definition listing Choose a year from the dropdown to view that year's definition 2000 2011 2009 2007 2003 2002 2001 2000 1999 1998 Alzheimer's disease Date: November 2000 Definition: Alzheimer's disease supported by evidence of progressive loss of the ability: to remember, to reason, and to perceive, understand, and express and give effect to ideas.No change since February 1998 Definition update history: Alzheimer's disease May 2011 Alzheimer's disease July 2009 Alzheimer's disease April 2007 Alzheimer's disease November 2003 Alzheimer's disease May 2003 Alzheimer's disease March 2003 Alzheimer's disease April 2002 Alzheimer's disease July 2001 Alzheimer's disease November 2000 Alzheimer's disease November 1999 Alzheimer's disease July 1999 Alzheimer's disease February 1998 Share this by email Back to Pegasus definition listing