Back to Pegasus definition listing Choose a year from the dropdown to view that year's definition 2001 2011 2009 2007 2003 2002 2001 2000 1999 1998 Loss of speech Date: July 2001 Definition: Total permanent and irreversible loss of the ability to speak as a result of physical injury or disease.No change since November 1999 Definition update history: Loss of speech May 2011 Loss of speech July 2009 Loss of speech April 2007 Loss of speech November 2003 Loss of speech May 2003 Loss of speech March 2003 Loss of speech April 2002 Loss of speech July 2001 Loss of speech November 2000 Loss of speech November 1999 Loss of speech July 1999 Loss of speech February 1998 Share this by email Back to Pegasus definition listing