Definitions

1. noun

the branch of astronomy dealing with the origin, evolution, and structure of the universe

“The new cosmology textbook covered topics from the Big Bang to dark matter.”

2. noun

a theory or model of the origin and evolution of the universe

“The cosmology of the ancient Greeks included a series of concentric celestial spheres.”

3. noun

the study of the physical nature of the universe

“The cosmology team spent years studying the cosmic microwave background radiation.”