Definition of cosmology noun from the Oxford Advanced Learner's Dictionary



BrE BrE//kɒzˈmɒlədʒi//
; NAmE NAmE//kɑːzˈmɑːlədʒi//
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the scientific study of the universe and its origin and development Word Origin mid 17th cent.: from French cosmologie or modern Latin cosmologia, from Greek kosmos ‘order or world’ + -logia ‘discourse’.
See the Oxford Advanced American Dictionary entry: cosmology