プログレッシブ和英中辞典(第4版)の解説
ろうじん【老人】
〔男〕an old man；〔女〕an old woman；〔総称〕the aged, the elderly；〔遠回しに〕a senior citizen
老人優先席
a seat for which the elderly are given preference
70歳以上の老人に特別の割引がある
There is a special discount for people of seventy and over.
老人医学
geriatrics
老人医療
geriatric medicine; the medical treatment (and care) of old people
老人医療無料制度
free medical care for the aged
老人学
gerontology
老人差別
ageism
老人性認知症
senile dementia
老人性白内障
(a) senile cataract
老人パワー
《米》 gray power
老人病
the diseases [infirmities] of old age
老人病院
a geriatric hospital
老人病学
geriatrics
老人福祉
welfare (service) for 「the elderly [senior citizens]
老人ホーム
a home for the aged [elderly]; a nursing home