老 衰(ろうすい)

ろうすい

noun

senility, death from old age

formalmedical

1. senility, physical decline due to old age, death from old age

The gradual deterioration of bodily functions due to advanced age. In Japanese medical and legal contexts, it is used as an official cause of death when no specific disease is identified.

祖父(そふ)は老衰(ろうすい)で亡(な)くなった。

My grandfather passed away from old age.

死因(しいん)は老衰(ろうすい)と診断(しんだん)された。

The cause of death was diagnosed as senility.

高齢化(こうれいか)社会(しゃかい)が進(すす)む中(なか)、老衰(ろうすい)による死亡(しぼう)が増加(ぞうか)している。

As society continues to age, deaths from old age are increasing.

Usage

In Japan, 老衰(ろうすい) is an officially recognized cause of death on death certificates, used when an elderly person dies of natural causes without a specific identifiable disease. It has become one of the leading causes of death as Japan's population ages.

Common collocations

老衰(ろうすい)で亡(な)くなる: to die of old age
老衰(ろうすい)死(し): death from old age
死因(しいん)は老衰(ろうすい): cause of death is senility
老衰(ろうすい)による死亡(しぼう): death due to old age

Related Words

Compare: 病死(びょうし) (death from illness)

general

Added 2026.2.27 17:32 · Revised 2026.9.2 13:01

13500/13982_rousui