Massicot meaning

măs'ĭ-kŏt', -kō'
A soft, powdery mineral, PbO, used in making rubber, glass, etc.; lead oxide.
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(chemistry) Lead monoxide, PbO, obtained as a yellow amorphous powder, the fused and crystalline form of which is called litharge; lead ocher. It is used as a pigment; also, lead oxide yellow, as opposed to red lead, which is lead tetroxide Pb3O4.

Note Massicot is sometimes used by painters, and also as a drier in the composition of ointments and plasters.

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Origin of massicot

  • Middle English masticot from Middle French massicot, marcicotte perhaps ultimately partly from Arabic martak litharge (probably from Middle Persian murdag dead) ((probably used metaphorically of the byproducts of smelting; compare Persian murdāsang dross of lead) (murda dead) (sang stone)) (from Old Persian marta-) (from mariya- to die mer- in Indo-European roots) and partly from Old Italian marzacotto potter's glaze of lead oxide, sand, and potash (from alteration (influenced by Old Italian cotto cooked)) (of Arabic masḥaqūnīyā) (from Syriac mešāḥ qunyā glaze of ashes) (Syriac mešāḥ unguent, salve) (from mšaḥ to anoint mšḥ in Semitic roots) (Greek koniā ashes, sand) (Latin cinis ashes)
    From American Heritage Dictionary of the English Language, 5th Edition
  • Middle English masticot from Middle French massicot, marcicotte perhaps ultimately partly from Arabic martak litharge (probably from Middle Persian murdag dead) ((probably used metaphorically of the byproducts of smelting; compare Persian murdāsang dross of lead) (murda dead) (sang stone)) (from Old Persian marta-) (from mariya- to die mer- in Indo-European roots) and partly from Old Italian marzacotto potter's glaze of lead oxide, sand, and potash (from alteration (influenced by Old Italian cotto cooked)) (of Arabic masḥaqūnīyā) (from Syriac mešāḥ qunyā glaze of ashes) (Syriac mešāḥ unguent, salve) (from mšaḥ to anoint mšḥ in Semitic roots) (Greek koniā ashes, sand) (Latin cinis ashes)
    From American Heritage Dictionary of the English Language, 5th Edition
  • French massicot; English masticot is a corruption
    From Wiktionary