noun
Freq #1115488
Meanings
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1
noun
a warm-climate flowering plant of the genus Plumbago, commonly called leadwort
Blue plumbago flowered along the sunny garden wall.
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2
noun
an old name for graphite or black lead
The polished rock looked as though it had been coated with plumbago.
Thesaurus
Etymology
Borrowed from Latin plumbago, 'lead ore or leadwort,' from plumbum, 'lead.' The same name was applied to the plant and to graphite, once called black lead because its appearance suggested lead even though it contains carbon rather than the metal.