life
span
Plural
lifespans
1
the total amount of time that an organism, person, or object is alive or able to function
- Some species of turtles have a lifespan of over 100 years.
- The lifespan of a car battery is usually about 3 to 5 years.
- Scientists are working to understand the lifespan of human cells.
- He had a long lifespan, living well into his 90s.
- She studies the lifespan of different species in her research.