[ge.ri.at.ric] n (1909) 1 pl but sing in constr: a branch of medicine that deals with the problems and diseases of old age and aging people--compare gerontology
2: an aged person
[2]geriatric adj [Gk geras old age + E -iatric] (1926) 1 a: of or relating to geriatrics or the process of aging b: of, relating to, or appropriate for elderly people "the ~ set"
2. a: old, elderly "a ~ dachshund" b: being old and outmoded "~ airplanes"