white lead

white lead

[led]
noun
1.
a white, heavy powder, basic lead carbonate, 2PbCO 3 ⋅Pb(OH) 2 , used as a pigment, in putty, and in medicinal ointments for burns.
2.
the putty made from this substance in oil.

Origin:
1400–50; late Middle English

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World English Dictionary
white lead (lɛd)
 
n
1.  Also called: ceruse a white solid usually regarded as a mixture of lead carbonate and lead hydroxide; basic lead carbonate: used in paint and in making putty and ointments for the treatment of burns. Formula: 2PbCO3.Pb(OH)2
2.  either of two similar white pigments based on lead sulphate or lead silicate
3.  a type of putty made by mixing white lead with boiled linseed oil

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