Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of various chiefly tropical ornamental plants of the genus Plumbago, having five-lobed often blue flowers.
  • noun Any of various plants of the genus Ceratostigma, especially C. plumbaginoides, having shiny leaves and blue flowers and often grown as a ground cover.

from The Century Dictionary.

  • noun An herbaceous plant of southern Europe, Plumbago Europæa.
  • noun By extension, any plant of the genus Plumbago, of the order Plumbagineæ.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Bot.) A genus of maritime herbs (Plumbago). Plumbago Europæa has lead-colored spots on the leaves, and nearly lead-colored flowers.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun botany Any of various maritime herbs of the genus Plumbago, some of which have lead-coloured spots on the leaves or nearly lead-coloured flowers.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a plant of the genus Plumbago with blue flowers

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Translation of Latin plumbāgō, a kind of plant (perhaps of the genus Plumbago), from plumbum, lead; see plumbago.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

lead +‎ wort

Examples

  • Dr. Oswald has employed the alcoholic tincture of leadwort in the intermittents, with satisfactory results, and claims that it is a powerful diaphoretic.

    The Medicinal Plants of the Philippines

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