plumbago definition

  • noun:
    • identify graphite.
    • any one of various plants of genus Plumbago; leadwort.
    • graphite
    • leadwort
    • identical to graphite.
    • A genus of herbaceous plants with pretty salver-shaped corollas, usually blue or violet; leadwort.
    • Black-lead; graphite. See graphite.
    • [capitalized] [NL. (Tournefort, 1700).] A genus of plants, the leadworts, of the order Plumbagine√¶ and tribe Plumbage√¶. characterized by a glandular calyx with five short erect teeth, a salver-shaped corolla with slender tube, free stamens, and five styles united into one nearly to the top.
    • made use of as a lubricant so that as a moderator in atomic reactors
    • any plumbaginaceous plant regarding the genus Plumbago

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