geriatric /ˌdʒɛɹ.iˈæt.ɹɪk/adjective 3noun 1forms 3 adjective3 •Relating to the elderly.The study examined the efficacy of geriatric interventions in reducing the frequency of falls among the elderly.Proper nutrition is a cornerstone of geriatric health, yet it is often overlooked in home-care settings. •Relating to geriatrics.At that moment he was practicing one of his professions—that of geriatric psychiatrist. — 2020 •Elderly, old. noun1 •(slang) An old person. formsgeriatrics · more geriatric · most geriatric