Definitions

1. noun

the length of time that something lasts or continues to exist, especially a person’s life

“The doctor said that the new medicine could increase a person’s lifespan by several years.”

2. noun

the period of time during which something is active or in operation

“The lifespan of the company’s new product line was only a few months.”

3. noun

the period of time during which a particular organism, such as a tree or a species, can reproduce

“The lifespan of the new tree variety was longer than expected.”