1806, from Latin dementia "madness, insanity," literally "a being out of one's mind," from dement-, stem of demens "mad, raving" (see dement) + abstract noun suffix -ia. It existed earlier in an anglicized form, demency (1520s), from French démence. Dementia praecox is a Modern Latin form recorded from 1899 in English, 1891 in German, from French démence précoce (1857). See precocious.
实用例句
1. Within the umbrella term "dementia" there are many different kinds of disease.
“痴呆”这一统称里包括多种不同的疾病。
来自柯林斯例句
2. What exactly goes wrong with those suffering from senile dementia?
那些患老年痴呆症的人到底出了什么问题？
来自柯林斯例句
3. She is suffering from senile dementia.
她患有老年痴呆症。
来自柯林斯例句
4. They possessed a large share of that singular cunning which characterizes this form of dementia.
他们所具有的那种异常的狡诈,也正是智力丧失症的一种特征.
来自辞典例句
5. Senile dementia patients aren't completely out of their minds.
