• noun the time from birth to death
  • noun a state of active metabolism 3. the state or experience of being alive.
  • noun living organisms
  • The ability to erect barriers and organise within them material and information in a way which the laws of thermodynamics would otherwise prevent. Definitions of life are chronically complex and controversial, and are biassed hopelessly by the fact that we base them solely on our experience of life on Earth.
  • The time interval during which something exists or functions in a given manner. For instance, the operating life, useful life, or shelf life of a device, or the time that elapses between the creation of an electron hole pair, and its recombination.

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