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psychogeriatric

British  
/ ˌsaɪkəʊdʒɛrɪˈætrɪk /

adjective

  1. technical_term (of an older person) no longer in touch with everyday realities; exhibiting delusions; mentally incompetent

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

    1. offensive a confused old person

    2. an impersonal label for a patient, as a unit, requiring institutional services appropriate for a mentally disordered old person

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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