black-lead

A carpenter uses black-lead to lubricate a stubborn lock.

Definition

Noun: - A mineral substance: "black-lead" refers to graphite, a soft, dark grey or black crystalline form of carbon used in pencils and as a lubricant.

Verb: - To polish with graphite: "black-lead" means to apply or polish something using graphite, typically to give a black, shiny finish.

Usage Examples

• Noun:

  • The pencil core is made of black-lead, not actual lead. (Graphite is the material inside pencils.)
  • Black-lead is used in some industrial lubricants due to its slippery texture. (Graphite serves as a lubricant.)

• Verb:

  • He black-leaded the stove grate to make it shine. (He polished the grate with graphite.)
  • The mechanic black-leaded the metal parts to reduce friction. (He applied graphite to the parts.)

Advanced Usage

• "to black-lead something": to coat or polish an object with graphite for protection or appearance.
  • The antique iron was black-leaded to prevent rust. (Graphite was applied to protect the iron.)

Variants and Related Words

• Black lead (noun phrase): an alternative spelling, often used interchangeably with "black-lead."
  • The artist used black lead for sketching. (Graphite for drawing.)

Synonyms

• Graphite: a crystalline form of carbon, the primary component of black-lead.
• Plumbago: an older term for graphite, especially when used in pencils.
• Mineral black: a dark pigment derived from carbon or graphite.

Related Idioms