plumbago
/plʌmˈbeɪɡoʊ/
noun
- A soft, dark gray mineral form of carbon used in pencils and as a lubricant; graphite.
- In the 18th century, plumbago was mined for use in writing and drawing.
- The artist used plumbago to sketch the outline of the portrait.
- Plumbago is often mixed with clay to make pencil leads.
- A tropical or subtropical plant of the genus Plumbago, with clusters of blue, white, or red flowers.
- Plumbago blooms best in full sunlight and well-drained soil.
- The garden center sold several varieties of plumbago for summer borders.
- She planted plumbago along the fence for a splash of blue color.
Synonyms