1
: a soft black lustrous form of carbon that conducts electricity and is used in lead pencils and electrolytic anodes, as a lubricant, and as a moderator in nuclear reactors
2
: a composite material in which carbon fibers are the reinforcing material

Examples of graphite 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.
The cooler is available in nightfall blue, primrose, lilac, and graphite, and in 18-can and 24-can sizes. Terri Williams, Forbes.com, 1 July 2026 Breaking China’s grip China controls the majority of the world’s battery graphite and anode technology. Mrigakshi Dixit, Interesting Engineering, 7 July 2026 See All Example Sentences for graphite

Word History

Etymology

German Graphit, from Greek graphein to write

First Known Use

1796, in the meaning defined at sense 1

Time Traveler
The first known use of graphite was in 1796

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Cite this Entry

“Graphite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/graphite. Accessed 10 Jul. 2026.

Kids Definition

: a soft shiny black carbon that is used in making lead pencils and as a dry lubricant

Medical Definition

: carbon of a soft black lustrous form that conducts electricity and is used in lead pencils and electrolytic anodes, as a lubricant, and as a moderator in nuclear reactors

called also plumbago

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