Tychism
Pronunciation : Ty"chism, n. [Gr. ty`chh fortune
Part of Speech : chance
Definition : Defn: Any theory which conceives chance as an objective reality; esp., a theory of evolution which considers that variation may be purely fortuitous.
+ -ism.]
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder