from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See graphite.
- n. Any of various plants of the genus Plumbago; leadwort.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. graphite
- n. leadwort
from the GNU version of the Collaborative International Dictionary of English
- n. Same as graphite.
- n. A genus of herbaceous plants with pretty salver-shaped corollas, usually blue or violet; leadwort.
from The Century Dictionary and Cyclopedia
- n. Black-lead; graphite. See graphite.
- n. [capitalized] [NL. (Tournefort, 1700).] A genus of plants, the leadworts, of the order Plumbagineæ and tribe Plumbageæ. 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.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. used as a lubricant and as a moderator in nuclear reactors
- n. any plumbaginaceous plant of the genus Plumbago
Latin plumbāgō, lead ore, from plumbum, lead.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin plumbāgō, from plumbum ("lead"). (Wiktionary)