View example sentences, synonyms and word forms for Plumbago.
Plumbago
Plumbago meaning
A plant of the genus Plumbago; leadwort. | Graphite.
Synonyms of Plumbago
Example sentences (4)
Because of its military importance, this unique mine and its production were strictly controlled by the Crown. citation Other names main Historically, graphite was called black lead or plumbago.
He attempted to clear up the confusion between molybdena, plumbago and blacklead after Carl Wilhelm Scheele in 1778 proved that there are at least three different minerals.
Later, Thoreau converted the factory to produce plumbago (graphite), which was used in the electrotyping process.
The term plumbago drawing is normally restricted to 17th and 18th century works, mostly portraits.