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Definition of Lead monoxide
1. Noun. (inorganic compound) The oxide of lead, PbO, that occurs as the minerals litharge and massicot ¹
¹ Source: wiktionary.com
Medical Definition of Lead monoxide
1. Has been used as an ingredient in external applications such as lead plaster. Synonym: lead oxide (yellow), litharge, massicot. (05 Mar 2000)