Definition

Noun: 1. A B-complex vitamin that is a constituent of lecithin; essential in the metabolism of fat: Choline is an essential nutrient, often grouped with B vitamins, that is a key component of lecithin. It is crucial for the proper metabolism of fats in the body and for liver function.

Usage

Choline is used as a singular, uncountable noun when referring to the nutrient as a substance. * It is an essential nutrient obtained from food. * It is discussed in contexts of biochemistry, nutrition, and health.

Examples

• Noun:
  • Eggs are an excellent dietary source of choline.
  • The liver requires choline to process and export fat.
  • Adequate choline intake is important for brain health.

Advanced Usage

• "Choline deficiency": A state of insufficient choline in the body.
  • Choline deficiency can lead to fatty liver disease.
• In biochemical contexts, choline is often discussed as a precursor to the neurotransmitter acetylcholine and to phosphatidylcholine, a major component of cell membranes.

Variants and Related Words

• Phosphatidylcholine (n): A phospholipid containing choline that is a major constituent of cell membranes and a common form of choline in supplements.
• Acetylcholine (n): A vital neurotransmitter in the brain and nervous system, synthesized from choline.
• Lecithin (n): A mixture of phospholipids, including phosphatidylcholine, often used as a source of choline.

Synonyms

• Nutrient: A substance that provides nourishment essential for life and growth. (This is a broader category.)
• Vitamin-like substance: A term sometimes used because choline has vitamin-like functions but is not always classified as a true vitamin.

Related Compounds (Not phrasal verbs, as it is a noun)

• Choline bitartrate: A common salt form of choline used in dietary supplements.
• Choline chloride: A form of choline often used in animal feed.

Noun

1. a B-complex vitamin that is a constituent of lecithin; essential in the metabolism of fat