lifetime

[lahyf-tahym] /ˈlaɪfˌtaɪm/
noun
1.
the time that the life of someone or something continues; the term of a life:
peace within our lifetime.
2.
Physics. mean life.
adjective
3.
for the duration of a person's life:
He has a lifetime membership in the organization.
Origin
1175-1225; Middle English liftime. See life, time
Examples from the web for lifetime
  • Surplus wealth is a sacred trust which its possessor is bound to administer in his lifetime for the good of the community.
  • He fills his lifetime with deeds, not with inactive years.
  • Lives of nations are determined not by the count of years, but by the lifetime of the human spirit.
  • Published anonymously during the lifetime of the duke.
  • In my lifetime-in depression and in war-they have awaited our defeat.
  • During his lifetime the poet never permitted any of these to be included in his works.
  • He published sixty-three in his own lifetime, forty-six having appeared before he was twenty-five years of age.
  • After each mating about five to ten in a lifetime the wounds heal and leave scar tissue.
  • And it doesn't take a lifetime's commitment to get there.
  • That's only good for the lifetime of a box, but still.
British Dictionary definitions for lifetime

lifetime

/ˈlaɪfˌtaɪm/
noun
1.
  1. the length of time a person or animal is alive
  2. (as modifier): a lifetime supply
2.
the length of time that something functions, is useful, etc
3.
(physics) the average time of existence of an unstable or reactive entity, such as a nucleus, excited state, elementary particle, etc; mean life
Word Origin and History for lifetime
n.

also life-time, early 13c., from life (n.) + time (n.). One word from 19c. Old English had lifdæg in same sense, literally "life day."

lifetime in Medicine

lifetime life·time (līf'tīm')
n.

  1. The period of time during which an individual is alive.

  2. The period of time during which property, an object, a process, or a phenomenon exists or functions.