Definition

1. Noun:
   • A yellow, fatty substance (a phospholipid) that is essential in the metabolism of fats. It is a natural component of cell membranes and is found in egg yolks, soybeans, and animal tissues. It is also used commercially as an emulsifier to mix fats and water.

Examples of Usage

• Noun:
  • Soybeans are a rich source of lecithin.
  • Lecithin is often added to chocolate to help maintain a smooth texture.
  • The supplement contains lecithin derived from sunflower seeds.

Advanced Usage

• Technical/Biochemical Context: In biochemistry, lecithin is often used to refer to phosphatidylcholine, a specific type of phospholipid crucial for cell structure and function.
  • The study focused on the role of lecithin in neuronal membrane integrity.

Variants and Related Words

• Phosphatidylcholine (n): The scientific name for the most common type of lecithin.
• Emulsifier (n): A general term for substances, like lecithin, that help blend immiscible liquids (e.g., oil and water).

Synonyms

• Phospholipid: A broader class of lipids that includes lecithin.
• Emulsifying agent: A functional synonym highlighting its commercial use.

Related Phrases/Compounds

• Soy lecithin: A common commercial form of lecithin extracted from soybeans.
• Egg lecithin: Lecithin obtained from egg yolk.

Noun

1. a yellow phospholipid essential for the metabolism of fats; found in egg yolk and in many plant and animal cells; used commercially as an emulsifier