villous

villous

The villous surface of the small intestine absorbs nutrients efficiently.

Definition

Adjective: - Covered with villi: In anatomy, "villous" describes a surface that is covered in villi, which are small, finger-like projections that line certain membranes (e.g., the small intestine) and increase surface area for absorption. - Having soft, shaggy hairs: In botany, "villous" refers to a plant surface that is covered with long, soft, unmatted hairs (trichomes), giving a woolly or fuzzy appearance.

Usage Examples
  • Anatomy:

    • The villous lining of the small intestine is essential for nutrient absorption. (The surface covered with villi helps take in nutrients from food.)
    • The placenta has a villous structure that facilitates gas exchange between mother and fetus. (The finger-like projections aid in transferring oxygen and carbon dioxide.)
  • Botany:

    • The leaves of this plant are villous, with soft hairs that protect them from herbivores. (The leaf surface is covered in fuzzy hairs.)
    • A villous stem can help reduce water loss in dry environments. (The hairy stem slows evaporation.)
Advanced Usage
  • "Villous atrophy": a medical condition where the villi in the small intestine become damaged and flattened, often due to celiac disease.

    • Celiac disease can cause villous atrophy, leading to malnutrition. (The villi shrink, impairing digestion.)
  • "Villous adenoma": a type of polyp in the colon that has a villous surface pattern and a higher risk of becoming cancerous.

    • A villous adenoma was detected during the colonoscopy. (A polyp with finger-like projections was found.)
Variants and Related Words
  • Villus (n, singular): a single finger-like projection.

    • Each villus has a network of capillaries for nutrient transport. (One of the small projections in the intestine.)
  • Villi (n, plural): multiple villi.

    • The intestinal villi increase the surface area for digestion. (The many projections aid absorption.)
  • Villosity (n): the state or quality of being villous.

    • The villosity of the membrane enhances its function. (The hairy or finger-like nature of the surface.)
Synonyms
  • Hairy: covered with hair (general term, but less specific than "villous").
    • The villous leaf is similar to a hairy leaf, but the hairs are usually softer and longer.
  • Fuzzy: covered with soft, fine hairs.
    • A villous plant often feels fuzzy to the touch.
  • Shaggy: having long, rough hair or fibers.
    • The villous stem looks shaggy compared to smooth stems.
Related Idioms
  • No direct idioms: "Villous" is a specialized scientific term and does not appear in common idioms or phrasal verbs.
Phrasal Verbs
  • None applicable: "Villous" is an adjective and does not form phrasal verbs.