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.
Its cathode is made of sulfur embedded in a carbon matrix that conducts electricity, and the anode is made primarily of lithium itself, rather than graphite layers with lithium in between. Golareh Jalilvand, The Conversation, 12 Nov. 2025 With a Black/Black/Light Graphite color combination, the style blacks out the entire nubuck leather upper with lighter graphite accents on the tongue and insole branding. Riley Jones, Footwear News, 9 Nov. 2025 The community is in the graphite. Alessia Glaviano, Vogue, 20 Oct. 2025 Using porous graphite felt and enhanced heat transfer, gas released from the resin escapes while a vacuum system removes it, allowing crowns to survive the process without cracking. Neetika Walter, Interesting Engineering, 17 Oct. 2025 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 17 Nov. 2025.

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

More from Merriam-Webster on graphite

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