lifespan
- 01 B2 Upper Intermediate
the length of time that a person, animal, or plant usually lives.
the period of time between the birth and death of a biological organism.
Simple“The average lifespan of a domestic cat is around fifteen years.”
In context“Advances in medical technology and public health have significantly extended the human lifespan in most developed nations over the last century.”
Synonymslife expectancylongevity - 02 B2 Upper Intermediate
the length of time that a machine or product stays useful or works correctly.
the period during which an inanimate object, system, or concept remains functional, valid, or relevant.
Simple“Using the wrong charger can shorten the lifespan of your phone battery.”
In context“The architectural firm designed the bridge with a projected lifespan of one hundred years, accounting for both material fatigue and rising sea levels.”
Synonymsdurabilityservice life
“That difference allows researchers to observe aging and lifespan outcomes in dogs much more quickly than would be possible in human studies.”
“Scientists know far less about the gradual changes that occur in a healthy brain across an individual's normal lifespan.”
From life + span.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.