American Heritage Dictionary
(1)
Century Dictionary
GNU Webster's 1913
WordNet
Elsewhere on the web
Hence the periodic symbol for lead, Pb, and where the term "plumbing" originated from.
One master composite sample grading 190 g / t Ag, 0. 17\% Cu and 0. 2\% Pb was also made up from composited material from nine diamond drill holes from Barite Hill.— MarketWatch.com - Top Stories
With Caenorhabditis elegans Pb, Cr and Cd were found to have the lowest 96-h LC50 (0.06 mg / L) and Sr had the highest LC50 (465 mg / L).— CiteULike: Everyone's library
Comparison with published data for other invertebrates indicated that was more sensitive to Pb, Cr and Be and less sensitive to As than any of the other organisms that have been tested.— CiteULike: Everyone's library
Concentration-response data were obtained on nematodes of various developmental stages exposed to four metals (Cd, Pb, Cu, and Hg) and a water-soluble organic toxicant, sodium pentachlorophenate (PCP), under conditions of varied solvent medium (with or without salts and with or without a bacterial food source).— CiteULike: Everyone's library

American Heritage Dictionary (1)
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