Word
graphite
US/ˈɡɹæˌfaɪt/
UK/ɡɹˈæfaɪt/
Definitions
01pencil material / lubricant
B2 · Upper Intermediate Uncountable noun Science Technical
n. a soft, black mineral used in the middle of pencils to write with.
n. a soft, greyish-black allotrope of carbon that occurs as a mineral; it is used for pencil leads, as a dry lubricant, and as a moderator in nuclear reactors.
“The artist used a soft graphite pencil to create deep shadows in the drawing.”
“Graphite is an excellent dry lubricant because the layers of carbon atoms slide over each other with very little friction.”
Usage
Uncountable when referring to the substance; countable when referring to specific types or grades.
Synonyms
02carbon-fibre composite
C1 · Advanced Uncountable noun Science Technical
n. a very strong, light material made from carbon fibres, often used in sports equipment.
n. a composite material reinforced with carbon fibres, valued for its high strength-to-weight ratio and stiffness.
“His new tennis racket is made of graphite, making it very light and powerful.”
“The aerospace industry relies heavily on graphite composites to reduce the overall weight of the aircraft without sacrificing structural integrity.”
Usage
Often used as a modifier before another noun, such as 'graphite frame' or 'graphite shaft'.
Synonyms
03a dark grey colour
B2 · Upper Intermediate Uncountable noun
n. a dark, metallic grey colour that looks like the lead in a pencil.
n. a dark grey colour with a slight metallic sheen, resembling the appearance of mineral graphite.
“She chose a graphite paint for the kitchen cabinets to give them a modern look.”
“The luxury sedan was available in several metallic finishes, including a sophisticated graphite that highlighted its sleek lines.”
Usage
Often used as an adjective to describe the colour of consumer goods like cars or electronics.
04to coat with graphite
C2 · Proficiency Technical
v. to cover or treat a surface with graphite to make it slide easily.
v. to apply a coating of graphite to a surface, typically for lubrication or to provide electrical conductivity.
“The mechanic decided to graphite the rusty lock so the key would turn smoothly.”
“Engineers specified that the gaskets should be graphited to ensure a proper seal under high-temperature conditions.”
Usage
This verb is transitive and requires a direct object.
Synonyms
Real-World Examples
“At room temperature and everyday air pressure, carbon exists as graphite – the material in pencils that people often call pencil lead.” “With diamond, however, the high temperatures can turn it into graphite.” Etymology
Borrowed from German Graphit (A. G. Werner 1789), from Ancient Greek γράφω (gráphō, “I write”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Frequency
- Frequent
- Level
- B2 · Upper Intermediate
- Updated
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