[lahyf-tahym] 
| 1. | the time that the life of someone or something continues; the term of a life: peace within our lifetime. |
| 2. | Physics. mean life. |
| 3. | for the duration of a person's life: He has a lifetime membership in the organization. |
| 1. | the average time that an unstable particle or nucleus survives before it decays. |
| 2. | decay time. |
lifetime life·time (līf'tīm')
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.
