natural selection

noun
Updated on: 21 Nov 2017

Definition of natural selection

: a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment

Recent Examples of natural selection from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'natural selection.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of natural selection

1842


NATURAL SELECTION Defined for English Language Learners

natural selection

noun

Definition of natural selection for English Language Learners

  • : the process by which plants and animals that can adapt to changes in their environment are able to survive and reproduce while those that cannot adapt do not survive


Medical Dictionary

natural selection

noun

medical Definition of natural selection

: a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment

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