life span

noun
1.
the longest period over which the life of any organism or species may extend, according to the available biological knowledge concerning it.
2.
the longevity of an individual.

Origin:
1915–20

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To life span
Collins
World English Dictionary
life span
 
n
the period of time during which a human being, animal, machine, etc, may be expected to live or function under normal conditions

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

life span n.

  1. A lifetime.

  2. The average or maximum length of time an organism, a material, or an object can be expected to survive or last.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Example sentences
As researchers study these bugs, their life span will become better known.
Smokers have the added bonus of a relatively short life span, so you run less
  risk of seeing them twice.
As for the helicopter, it hasn't gone into the drink yet, despite the
  researchers' fears about its life span.
Anywhere in there is a normal life span, even though the ninety-year-old got
  fifty per cent more life.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature