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Human Life Span, Pre and Post 1940   Tags: 7th, kadlec, rains, science  

Last Updated: Nov 4, 2015 URL: http://rms.district90.libguides.com/content.php?pid=628802 Print Guide RSS Updates
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Definition of Life Span

life span noun: the amount of time that a person or animal actually lives

1 :  the average length of life of a kind of organism or of a material object especially in a particular environment or under specified circumstances
2 :  the duration of existence of an individual
 

Examples of LIFE SPAN

  1. the average life span of house cats
  2. increase the human life span

First Known Use of LIFE SPAN

         1898
 
 
"Life Span." Merriam-Webster.com. Merriam-Webster, Web. 18 Sept. 2014. 

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