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单词 lifetime
释义

lifetime

[ lahyf-tahym ]
/ ˈlaɪfˌtaɪm /
SEE SYNONYMS FOR lifetime ON THESAURUS.COM

noun

the time that the life of someone or something continues; the term of a life: peace within our lifetime.
Physics. mean life.

adjective

for the duration of a person's life: He has a lifetime membership in the organization.

Origin of lifetime

First recorded in 1175–1225, lifetime is from the Middle English word liftime.See life, time

Words nearby lifetime

lifestyler, life-support, life-support system, life table, life-threatening, lifetime, life vest, lifeway, lifework, life zone, Liffey
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for lifetime

British Dictionary definitions for lifetime

lifetime
/ (ˈlaɪfˌtaɪm) /

noun

  1. the length of time a person or animal is alive
  2. (as modifier)a lifetime supply
the length of time that something functions, is useful, etc
physics the average time of existence of an unstable or reactive entity, such as a nucleus, excited state, elementary particle, etc; mean life
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for lifetime

lifetime
[ līftīm′ ]

n.

The period of time during which an individual is alive.
The period of time during which property, an object, a process, or a phenomenon exists or functions.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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更新时间:2025/1/24 17:57:24