senility
noun [ U ] uk/sɪˈnɪl.ə.ti/ us/səˈnɪl.ə.t̬i/
年老，衰老;随年老出现的体力与思考力的减退
the quality of being senile (= showing poor mental ability because of old age)
Low levels of selenium in the elderly are linked with an increased risk of dementia and senility. 老年人体内硒含量低跟老年痴呆和思考力减退的风险增加有关。
The hormone can damage brain cells and lead to premature senility. 这种激素会损害脑细胞，导致早衰。
See: senile
- More examples
- When he thought someone noticed his mental slips, he would smile warmly and blame senility.
- There is a world of difference between wavering concentration and actual senility.
- He has a short memory when it is convenient, or is this senility creeping in?