cosmology Meaning, Definition & Usage

  1. noun the metaphysical study of the origin and nature of the universe
  2. noun the branch of astrophysics that studies the origin and evolution and structure of the universe
    cosmogony; cosmogeny.

WordNet

Cos*mol"o*gy noun
Etymology
Gr. ko`smos the world + -logy: cf. F. cosmologie.
Definitions
  1. The science of the world or universe; or a treatise relating to the structure and parts of the system of creation, the elements of bodies, the modifications of material things, the laws of motion, and the order and course of nature.

Webster 1913