geriatric

1. ADJ Geriatric is used to describe things relating to the illnesses and medical care of old people. 老年医学的[医学] [ADJ n]

There is a question mark over the future of geriatric care. 老年保健医学的未来是一个问号。

2. N-COUNT If you describe someone as a geriatric, you are implying that they are old and that their mental or physical condition is poor. This use could cause offence. 老家伙 (有冒犯之嫌)[表不满]

He will complain about having to spend time with such a boring bunch of geriatrics. 他会抱怨不得不花费时间跟这么一帮乏味的老家伙在一起。