noun
- plural of lifespan; the length of time that a person, animal, or thing is alive or exists
Usage: countable noun; commonly used in scientific, medical, and demographic contexts
Examples
- The lifespans of different dog breeds vary significantly.
- Scientists study the lifespans of insects to understand their biology.
- Modern medicine has extended human lifespans considerably.
- The lifespans of electronic devices are often shorter than expected.
- Researchers compared the lifespans of people in different countries.
- Mayflies have some of the shortest lifespans in the animal kingdom.