tychism
Ty"chism, n. [Gr. ty`chh fortune, chance + -ism.] Defn: Any theory which conceives chance as an objective reality; esp., a theory of evolution which considers that variation may be purely fortuitous.
Ty"chism, n. [Gr. ty`chh fortune, chance + -ism.] Defn: Any theory which conceives chance as an objective reality; esp., a theory of evolution which considers that variation may be purely fortuitous.