cos·​mol·​o·​gy | \käz-ˈmä-lə-jē \
plural cosmologies

Definition of cosmology 

1a : a branch of metaphysics that deals with the nature of the universe

b : a theory or doctrine describing the natural order of the universe

2 : a branch of astronomy that deals with the origin, structure, and space-time relationships of the universe also : a theory dealing with these matters

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Other Words from cosmology

cosmological \ ˌkäz-​mə-​ˈlä-​ji-​kəl \ adjective
cosmologically \ ˌkäz-​mə-​ˈlä-​ji-​k(ə-​)lē \ adverb
cosmologist \ käz-​ˈmä-​lə-​jist \ noun

Cosmology and Star Trek

Most religions and cultures include some kind of cosmology to explain the nature of the universe. In modern astronomy, the leading cosmology is still the Big Bang theory, which claims that the universe began with a huge explosion that sent matter and energy spreading out in all directions. One reason why fans watch Star Trek is for the various cosmologies depicted in the show, including different conceptions of space, time, and the meaning of life.

Examples of cosmology in a Sentence

Recent Examples on the Web

Their geometric rhythm is a symbolic representation of an individual’s complete cosmology. Aliza Kelly Faragher, Allure, "The 12 Astrological Houses: Interpreting Your Birth Chart Beyond the Zodiac," 6 Oct. 2018 In the end, in a complete cosmology this will have to be incorporated. Alexander Hellemans, Scientific American, "A Conversation with Thomas Hertog, One of Stephen Hawking’s Final Collaborators," 24 May 2018 His branch of science, cosmology, was now purporting to answer questions that were once asked of religion. The Economist, "Stephen Hawking, one of the world’s great physicists, has died," 14 Mar. 2018 The mission will act as a vital link in China’s burgeoning network of robotic spacecraft around and on the moon while also performing novel scientific experiments that could lead to new discoveries in cosmology, astrophysics and astrobiology. Leonard David, Scientific American, "Comsat Launch Bolsters China's Dreams for Landing on the Moon's Far Side," 22 May 2018 That’s a happy meld, those three men, that will always be a part of my cosmology through the song. Hilary Hughes, Billboard, "Patti Smith on 'Because The Night' at 40: How Her Bruce Springsteen Collaboration Is 'A Whole Life in A Song'," 21 June 2018 Her book, an Afrofuturist fantasy epic steeped in West African cosmology, earned one of the biggest advances in YA history. Constance Grady, Vox, "Tomi Adeyemi on writing YA about black girls: “I didn’t think black people could be in stories”," 5 June 2018 Remember, Virgo, within each person is a complex cosmology. Aliza Kelly Faragher, Allure, "What July's Virgo Horoscope Means for You," 29 June 2018 The old cosmologies were onto something after all, suggests Jones. Special To The Oregonian,, "Quake expert Lucy Jones examines natural disaster and human denial in 'The Big Ones'," 18 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cosmology.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cosmology

circa 1656, in the meaning defined at sense 1a

History and Etymology for cosmology

New Latin cosmologia, from Greek kosmos — see cosmic + New Latin -logia -logy

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Statistics for cosmology

Last Updated

15 Nov 2018

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Time Traveler for cosmology

The first known use of cosmology was circa 1656

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English Language Learners Definition of cosmology

: the scientific study of the origin and structure of the universe

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More from Merriam-Webster on cosmology

Nglish: Translation of cosmology for Spanish Speakers

Britannica English: Translation of cosmology for Arabic Speakers Encyclopedia article about cosmology

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