carbonaceous

adjective

car·​bo·​na·​ceous ˌkär-bə-ˈnā-shəs How to pronounce carbonaceous (audio)
1
: relating to, containing, or composed of carbon
2
: rich in carbon

Examples of carbonaceous in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Chondrites are divided into three families—ordinary, enstatite and carbonaceous—with the key difference being how oxidized their iron-bearing minerals are, much like the difference between a shiny unoxidized iron nail and one that’s rusty from heavy oxidation. Javier Barbuzano, Scientific American, 22 Apr. 2026 The refuse pile consisted of coal waste, carbonaceous shale, and coal ash. Logan Smith, CBS News, 11 Apr. 2026 This represents a technical shift in how researchers design carbonaceous anodes for energy applications. Aman Tripathi, Interesting Engineering, 25 Dec. 2025 Further examination of light reflected from the comet surface revealed that 3I/ATLAS likely resembles a rare type of meteorite called a carbonaceous chondrite. Andrew Paul, Popular Science, 3 Dec. 2025 See All Example Sentences for carbonaceous

Word History

First Known Use

1727, in the meaning defined at sense 1

Time Traveler
The first known use of carbonaceous was in 1727

Browse Nearby Words

Cite this Entry

“Carbonaceous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carbonaceous. Accessed 1 May. 2026.

Kids Definition

carbonaceous

adjective
car·​bo·​na·​ceous ˌkär-bə-ˈnā-shəs How to pronounce carbonaceous (audio)
: relating to, containing, or made up of carbon
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster