1. (noun) The study of the origin and nature of the universe.

2. (noun) A set of beliefs that defines the origin and nature of the universe.

Example: Buddhist cosmology, Creationist cosmology, Jain cosmology.

3. (noun) A comprehensive theory of the origin, composition, dynamics, evolution, and structure of the universe as a system.

Example: The Big Bang Theory or the Steady-State Theory.

Audio Pronunciation: (cos·mol·o·gy)

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Usage Notes:

  • Plural: cosmologies
  • Cosmology is known as the “Theory of Everything.”
  • A specific account or theory of the universe is called a cosmogony. Cosmogonies are typically in the form of a creation myth or scientific theory.
  • Derived from the Greek word for world or universe: kosmos.
  • Cosmology used in a sentence: I was fascinated by theories about cosmology as a child and I grew up to become an astronomer.
  • A (noun) cosmologer or (noun) cosmologist studies (adjective) cosmologic or (adjective) cosmological topics (adverb) cosmologically.

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