geriatric

noun
1
the branch of medicine that deals with the diseases and care of old people
پزشکی سالمندان, مُسِن‌شناسی
2
an offensive word for an old person
پیر
adjective
1
connected with the branch of medicine that deals with the diseases and care of old people
پیری‌شناسی, سالمندی‌پزشکی, مرتبط با سالمندان
2
old and in poor health or in bad condition
سالخورده, پیر
a geriatric vehicle