massicot

massicot

[mas-i-kot]
noun
monoxide of lead, PbO, in the form of a yellow powder, used as a pigment and drier.

Origin:
1425–75; late Middle English masticot < Middle French < Italian massicotto < Arabic masḥaqūniyā, perhaps < Greek

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To massicot
Collins
World English Dictionary
massicot (ˈmæsɪˌkɒt)
 
n
a yellow earthy secondary mineral consisting of lead oxide. Formula: PbO
 
[C15: via French from Italian marzacotto ointment, perhaps from Arabic shabb qubti Egyptian alum]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Encyclopedia Britannica
Encyclopedia

massicot

one of the two forms of lead oxide (PbO) that occurs as a mineral (the other form is litharge). Massicot forms by the oxidation of galena and other lead minerals as soft, yellow, earthy or scaly masses that are very dense. It has been found in significant quantities at Badenweiler, Ger.; La Croix-aux-Mines, Fr.; the Transvaal, S.Af.; Perote, Mex.; and Leadville, Colo., U.S. For detailed physical properties, see oxide mineral (table)

Learn more about massicot with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature