mortality
n. uncountablen. the fact that all living things must die one day. It can also mean the number of deaths in a certain group or time.
n. the state of being subject to death; the condition of being mortal. In a statistical context, it refers to the death rate within a specific population or period.
The accident made him think about his own mortality.
Improved healthcare and better nutrition have significantly lowered infant mortality in the region over the last decade.
The poet explores the theme of human mortality by contrasting the fleeting nature of life with the enduring beauty of the natural world.
From Old French mortalite, from Latin mortālitās, from mortālis (“relating to death”), from mors (“death”); equivalent to mortal + -ity.
Uncountable when referring to the state of being mortal; often used with 'rate' (mortality rate) when discussing statistics.