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Definition of geriatric noun from the Oxford Advanced American Dictionary

     

    geriatric

     noun
    noun
    NAmE//ˌdʒɛriˈætrɪk//
     
    , NAmE//ˌdʒɪriˈætrɪk//
     
     
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  1. 1geriatrics [uncountable] the branch of medicine concerned with the diseases and care of old people
  2. 2[countable] (informal) (offensive) an old person, especially one with poor physical or mental health I'm not a geriatric yet, you know!
geriatric adjective
 
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geriatric patients a geriatric vehicle (= old and in bad condition)