American Heritage® Dictionary of the English Language, Fourth Edition
- n. The mineral form of lead monoxide, PbO.
- n. A yellow powder, PbO, used as a pigment.
Century Dictionary and Cyclopedia
- n. Protoxid of lead, or yellow oxid of lead, PbO. Melted lead exposed to the air becomes covered with a yellowish-gray dusky pellicle. This pellicle is carefully taken off, and is oxidized by exposure to air and a moderate heat to a greenish-gray powder, inclining to yellow. This oxid, separated from the grains of lead by sifting, and exposed to a heat sufficient to make it red-hot, but not to melt it, assumes a deep-yellow color. In this state it is called
massicot, but does not differ chemically from litharge, though different in color and mechanical condition. After melting it has a reddish tint, and is called litharge. Massicot, slowly heated by a moderate fire, is further oxidized to minium or red lead. It is sometimes used as a pigment, and as a drier in the composition of ointments and plasters. Also called lead-ocher.
- n. 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.
GNU Webster's 1913
- n. (Chem.) Lead monoxide (also called
Lead protoxide), 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. It is also called lead oxide yellow, as opposed to red lead, which is lead tetroxide Pb3O4.
- French massicot; English masticot is a corruption (Wiktionary)
- Middle English masticot, from Old French, perhaps from Old Italian marzacotto, potter's glaze (perhaps from Spanish mazacote, mortar), possibly from Arabic masḥaqūnīyā, perhaps of Greek origin. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Several, including massicot or giallolino, purple of Cassius reference, and Drebbel's red, predated the epoch.”
“Ton coupe-papier guillotine sans guillotine s'appelle un “massicot”.”
“Parlant de mon massicot, je vais le ramener — il croche beaucoup trop quand on coupe et du coup, il coupe pas 100% droit-lisse…”
“This is procured by mixing massicot, or Naples yellow, with a small quantity of realgar, and a very little Spanish white.”
“A wooden door was now put up, and the baking was left to itself for about twenty-four hours, at the end of which time the lead would have become transformed into a yellowish powder, known as massicot.”
“Upon all vegetable lakes, except those of madder, they have a destructive effect; and are injurious to gamboge, as well as to those almost obsolete pigments, red and orange leads, king's and patent yellow, massicot, and orpiment.”
“It is an oxide of uncertain composition, prepared by subjecting massicot to the heat of”
“_Orange Lead_, of a dull orange colour, is an orange protoxide of lead or massicot.”
“Mr. Gummage immediately supplied her with two bristle brushes, and sundry little shallow earthen cups, each containing a modicum of some sort of body color, massicot, flake-white, etc., prepared by himself and charged at a quarter of a dollar apiece, and which he told her she would want when she came to do landscapes and figures.”
“Foreheads were powdered yellow with massicot, a lead oxide, for yellow was [...]”
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