Meaning of “natural selection” in the English Dictionary

british dictionary

(Definition of “natural selection” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"natural selection" in American English

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natural selectionnoun [ U ]

us /ˈnætʃ·ər·əl siˈlek·ʃən/

biology the theory that organisms with characteristics that allow them to live successfully in a particular environment will reproduce organisms with the same characteristics

(Definition of “natural selection” from the Cambridge Academic Content Dictionary © Cambridge University Press)