geriatric vs museum piece

geriatric

noun

  • An old person. 

adj

  • Relating to geriatrics. 

  • Relating to the elderly. 

  • Elderly, old. 

museum piece

noun

  • A very old item, especially an obsolete piece of technology. 

How often have the words geriatric and museum piece occurred in a corpus of books? (source: Google Ngram Viewer )