sienna

/si'enə/

Thân thiện

The artist mixes sienna pigment into the oil paint on her palette.

Definition

1. Noun:
   • A natural earth pigment: "sienna" refers to a type of clay earth pigment containing iron oxide and manganese oxide.
   • A color: "sienna" also names the yellowish-brown to reddish-brown color characteristic of this pigment.

Usage

• As a material/substance:
  • The artist mixed sienna with linseed oil to create the base tone for the landscape.
  • Raw sienna is mined in specific regions known for their natural earth deposits.
• As a color name:
  • The walls were painted a warm sienna.
  • Her hair had deep sienna highlights.

Advanced Usage

• "Burnt sienna": A pigment and color name. Raw sienna that has been heated, resulting in a darker, richer reddish-brown hue.
  • He preferred the deeper, more intense shade of burnt sienna for the portrait's background.
• Artistic and Historical Context: Sienna has been used as a pigment since antiquity. The name derives from the Italian city of Siena, in the Tuscany region, which was historically a major source and trading center for this earth pigment.

Variants and Related Words

• Raw sienna (noun phrase): The natural, unheated form of the pigment, which is a yellowish-brown.
• Burnt sienna (noun phrase): The calcined (heated) form of the pigment, which is a reddish-brown.

Synonyms

• Ocher (or ochre): A broader category of natural earth pigments containing iron oxide, which can be yellow, red, or brown. Sienna is a specific type within this category, typically distinguished by its higher manganese oxide content.
• Earth tone: A general term for colors that resemble natural soils, minerals, or clay, including sienna.

Idioms and Phrases

(This word is primarily a technical/artistic term and is not commonly used in idiomatic expressions.)

Học thuật

Noun

1. an earth color containing ferric oxides; used as a pigment