car·​bo·​na·​ceous | \ ˌkär-bə-ˈnā-shəs How to pronounce carbonaceous (audio) \

Definition of carbonaceous

1 : relating to, containing, or composed of carbon
2 : rich in carbon

Examples of carbonaceous in a Sentence

Recent Examples on the Web

When word spread throughout the scientific community that the dining room destroyer might be a carbonaceous chondrite, a ticking clock began. David Grossman, Popular Mechanics, "This Super Rare Mud Meteorite Crashed into a Costa Rican House," 22 May 2019 This hypothesis could be reinforced by bringing back the first pristine samples from carbonaceous asteroids. Jeremy Hsu, Scientific American, "Japan’s Hayabusa2 Spacecraft Nears Its Target, the Asteroid Ryugu," 26 June 2018 Comets, which contain a significant amount of ice, were the initial suspects, but later studies showed that water on Earth is strikingly similar to the water trapped within ancient rocky asteroids, known as carbonaceous chondrites. Jay Bennett, Popular Mechanics, "NASA's High-Speed Cannon Used to Explore the Origins of Water on Earth," 26 Apr. 2018 The carbonaceous chondrite is divided into six groups based on their bulk chemistry. Perry A. Farrell, Detroit Free Press, "Which type of meteorite landed in Michigan? NASA 90% sure it knows," 17 Jan. 2018 The carbonaceous are fragile and break apart very easily. Perry A. Farrell, Detroit Free Press, "Which type of meteorite landed in Michigan? NASA 90% sure it knows," 17 Jan. 2018 And the carbon inside the fossils contained even less carbon-13 than the random bits of carbonaceous stuff outside the fossils. Scott K. Johnson, Ars Technica, "Hotly debated 3.5 billion-year-old microbe fossils get another look," 3 Jan. 2018 Phaethon is a B-type asteroid that could be similar to some carbonaceous chondrites, which could contain organic molecules — the stuff of life. Blaine Friedlander, Washington Post, "The biggest meteor shower of the year peaks tonight. Here’s how to watch.," 13 Dec. 2017 This inference is drawn partly from the isotopic similarity of hydrogen, nitrogen and other materials on Earth to that of certain asteroids known as carbonaceous chondrites, as measured in meteorite samples, Marty said. NBC News, "We Might Not Exist If It Weren't For Comets," 9 June 2017

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

1727, in the meaning defined at sense 1

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Last Updated

10 Jun 2019

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The first known use of carbonaceous was in 1727

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