cosmos

noun
cos·​mos | \ ˈkäz-məs How to pronounce cosmos (audio) , senses 1 & 2 also -ˌmōs, -ˌmäs How to pronounce cosmos (audio) \

Definition of cosmos

b(1) : an orderly harmonious systematic universe — compare chaos
(2) : order, harmony
2 : a complex orderly self-inclusive system
3 plural cosmos\ ˈkäz-​məs How to pronounce cosmos (audio) , -​məz\ also cosmoses\ ˈkäz-​mə-​səz How to pronounce cosmoses (audio)\ [ New Latin, genus name, from Greek kosmos ] : any of a genus (Cosmos) of tropical American composite herbs especially : a widely cultivated tall annual (C. bipinnatus) with yellow or red disks and showy ray flowers

Illustration of cosmos

Illustration of cosmos

cosmos 3

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Cosmos and the Universe

Cosmos often simply means "universe". But the word is generally used to suggest an orderly or harmonious universe, as it was originally used by Pythagoras in the 6th century B.C. Thus, a religious mystic may help put us in touch with the cosmos, and so may a physicist. The same is often true of the adjective cosmic: Cosmic rays (really particles rather than rays) bombard us from outer space, but cosmic questions come from human attempts to find order in the universe.

Examples of cosmos in a Sentence

the origins of the cosmos an essay that ponders the place of humankind in the vast cosmos

Recent Examples on the Web

Deuterium-rich stars would be larger, brighter, and redder than equivalent stars in our universe, resembling thered giant stars of our cosmos. Charles Q. Choi, Space.com, "Why Alternate Universes Might Also Host Life Around their Stars," 26 Sep. 2018 Astronomers are racing to figure out what causes powerful bursts of radio light in the distant cosmosOne day in early 2007 undergraduate student David Narkevic came to us with some news. Maura Mclaughlin, Scientific American, "Flashes in the Night: The Mystery of Fast Radio Bursts," 1 Apr. 2018 Where a few new planets once shook up our picture of our own place in the cosmos, data dumps about hundreds of newfound planets now elicit a yawn. Andrew Moseman, Popular Mechanics, "Kepler's Last Light, and Its Towering Legacy," 8 Feb. 2019 This week in the cosmos brings subtle, sensitive shifts that will resonant for lifetimes to come. Bess Matassa, Teen Vogue, "Weekly Horoscopes July 2-8," 29 June 2018 In addition to a resplendent showcase of jewelry pieces and a musical performance by Jackson and His Computerband, guests were fully immersed in the cosmos via a brilliant experiential dinner. Catherine Scott, Vogue, "Cartier Launches a New Jewelry Collection With an Out of This World Dinner Party," 25 Jan. 2019 But from the ashes of that 2016 mishap came a showdown between the new pioneer of space, SpaceX, versus the old vanguard of the cosmos, NASA. Joe Pappalardo, Popular Mechanics, "SpaceX and NASA Reach Agreement on Astronaut Safety," 20 Aug. 2018 These remnants would help bridge incompatible theories of the cosmos at its largest and smallest scales, as well as possibly constitute a sizable portion of the presently unaccounted-for dark matter. Adam Hadhazy, Discover Magazine, "Scientists Hunt for A Seeming Paradox: A Magnet With Only One Pole," 13 Nov. 2018 What is the meaning of my little slice of time in the context of the whole history of the cosmos? Hans Aschim, Harper's BAZAAR, "Three Women in Science Who Broke the Glass Ceiling," 5 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cosmos.' 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 cosmos

1596, in the meaning defined at sense 1a

History and Etymology for cosmos

Greek kosmos

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Statistics for cosmos

Last Updated

9 May 2019

Look-up Popularity

Time Traveler for cosmos

The first known use of cosmos was in 1596

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More Definitions for cosmos

cosmos

noun

English Language Learners Definition of cosmos

: the universe especially when it is understood as an ordered system
: a tall plant that has usually white, pink, or red flowers

cosmos

noun
cos·​mos | \ ˈkäz-məs, 1 is also -ˌmōs, -ˌmäs\

Kids Definition of cosmos

1 : the universe especially as thought of as an orderly system
2 : a tall garden plant related to the daisies that has showy white, pink, or rose-colored flower heads

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More from Merriam-Webster on cosmos

Rhyming Dictionary: Words that rhyme with cosmos

Thesaurus: All synonyms and antonyms for cosmos

Spanish Central: Translation of cosmos

Nglish: Translation of cosmos for Spanish Speakers

Britannica English: Translation of cosmos for Arabic Speakers

Britannica.com: Encyclopedia article about cosmos

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