lifespan

Definition of Lifespan in English :

the period during which something is functional (as between birth and death)

Example Sentences:
'the battery had a short life'
'he lived a long and happy life'

WordNet Lexical Database for English. Princeton University. 2010.

Lifespan

noun

1.

the period of time during which a human being, animal, plant, etc, may be expected to live or function under normal conditions

A 15-year lifespan is not uncommon for a dog.

A fox's natural lifespan could be ten years.

They have extended the potential life span of humanity everywhere.

2.

the period of time during which a machine, product, etc, may be expected to function under normal conditions

Most boilers have a lifespan of 15 to 20 years.

This job had a planned lifespan of five years.

n.

1. A lifetime.

2. The average or maximum length of time an organism, material, or object can be expected to survive or last.