graphite

noun

graph·​ite ˈgra-ˌfīt How to pronounce graphite (audio)
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
graphitic adjective

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.
Currently, Europe relies heavily on imports of virgin graphite, a critical mineral tightly controlled by global markets outside the bloc. Mrigakshi Dixit, Interesting Engineering, 9 June 2026 At that hour the water was periwinkle, the sky soft graphite; the only sound was the hush of the boat’s twin hulls through the waves. Julie Orringer, Travel + Leisure, 9 June 2026 The new SIgnature Comfort Plus products are available in off white as well as black and graphite colors. Mark Sparrow, Forbes.com, 26 May 2026 However, modern pencils—which encase graphite, or a mixture of graphite and clay, in wood—date back to the 17th century. Harriet Weber, Popular Science, 20 May 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 15 Jun. 2026.

Kids Definition

graphite

noun
graph·​ite ˈgraf-ˌīt How to pronounce graphite (audio)
: a soft shiny black carbon that is used in making lead pencils and as a dry lubricant

Medical Definition

graphite

noun
graph·​ite ˈgraf-ˌīt How to pronounce graphite (audio)
: 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

graphitic adjective

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