Definition

1. Noun:
   • An oil extracted from mustard seeds: A fatty oil derived from the seeds of mustard plants, primarily used in industrial applications such as soap making and as a lubricant. It is distinct from culinary mustard oil used in some regional cuisines, which is often obtained by a different process.

Usage

• Noun:
  • Mustard oil is a key ingredient in some traditional soaps.
  • The factory processes seeds to produce mustard oil for industrial use.

Advanced Usage

• Technical/Industrial Context: In industrial and chemical contexts, "mustard oil" specifically refers to the fixed oil expressed from the seeds, used in manufacturing.
  • The formula calls for a base of mustard oil to create the lubricant.

Variants and Related Words

• Mustard seed oil: A synonymous term.
• Expressed mustard oil: Specifies the oil obtained by pressing the seeds.
• Allyl isothiocyanate: This is the volatile compound responsible for the pungent aroma of mustard and horseradish, sometimes colloquially called "volatile oil of mustard." It is chemically distinct from the fixed used in soap.

Synonyms

• Expressed oil of mustard

Notes on Different Meanings

• Culinary vs. Industrial: In many English-speaking regions, the term "mustard oil" can be ambiguous. The industrial oil defined here is not typically used for cooking in many countries due to regulatory restrictions. The culinary oil, often associated with South Asian cuisine, is frequently obtained from pressed mustard seeds but may refer to a different grade or preparation.

Noun

1. oil obtained from mustard seeds and used in making soap