tychism

noun

ty·​chism

ˈtīˌkizəm

plural -s

1

: a theory that chance is an objective reality

especially : a theory in evolution that variation may be purely fortuitous

—contrasted with uniformitarianism

2

: a proposition that absolute chance is operative in the cosmos

Word History

Etymology

Greek tychē chance, fortune + English -ism; akin to Greek tychanein to happen, happen on, attain, teuchein to make, build

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