老ろう年ねん痴ち呆ほうろうねんちほうMeanings1nounsenile dementiadated termmedicine›Dated medical term for senile dementia; now largely replaced by 老人性認知症 (ろうじんせいにんちしょう) in clinical and everyday use. Still encountered in older texts.See also: 老人性認知症
