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struggle for existence

noun
1.
the competition in nature among organisms of a population to maintain themselves in a given environment and to survive to reproduce others of their kind.
Origin
1820-1830
1820-30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for struggle existence

struggle for existence

noun
1.
(not in technical usage) competition between organisms of a population, esp as a factor in the evolution of plants and animals See also natural selection
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
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10
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