massicot
Definition
- Noun:
- A mineral form of lead monoxide: A naturally occurring, yellow-colored mineral composed primarily of lead(II) oxide (PbO).
- A yellow pigment: The powdered form of this mineral, used historically and artistically as a yellow pigment.
Usage Examples
- Noun:
- The geologist identified the yellow crystalline deposit as massicot.
- Art conservators found that the artist used massicot in the 15th-century painting, which has since darkened.
Advanced Usage
- Technical/Historical Context: "Massicot" is primarily used in geological, mineralogical, and art history contexts to describe the specific orthorhombic crystalline form of lead monoxide, distinguishing it from the red tetragonal form, litharge.
- The analysis confirmed the pigment was massicot, not the more common yellow ochre.
Variants and Related Words
- Massicotite: An alternative, though less common, name for the mineral.
- Litharge: (Noun) The red tetragonal form of lead monoxide (PbO), often contrasted with massicot.
- Lead monoxide: (Noun) The chemical compound PbO, which exists in the mineral forms massicot and litharge.
Synonyms
- Lead(II) oxide (chemical term)
- Yellow lead oxide (descriptive term)
Notes on Meaning
- The term "massicot" refers specifically to the natural mineral or its use as a pigment. It is not used for synthetic lead monoxide produced by modern industrial processes, which is typically referred to by its chemical name.
Noun
-
the mineral form of lead monoxide; in the form of yellow powder it is used as a pigment
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