/ˈdɑːrwɪnɪzəm/

Dar·win·ism

BrE /ˈdɑːwɪnɪzəm/

NAmE /ˈdɑːrwɪnɪzəm/

[U] (biology)

the theory that living things evolve by natural selection , developed by Charles Darwin in the 19th century

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Dar·win·ian

BrE /dɑːˈwɪniən/

NAmE /dɑːrˈwɪniən/

Darwinian ideas