villi

villi

A scientist examines the villi under a microscope.

Definition
  1. Noun (plural of ):
    • Anatomy: Small, finger-like projections that line the inner surface of the small intestine, increasing surface area for absorption of nutrients.
    • Botany: Fine, hair-like structures on the surface of fruits or plants, such as those found on some berries.
Usage Examples

  • Anatomy:

    • The villi in the small intestine absorb digested food molecules. (The finger-like projections take in nutrients from digested food.)
    • Damage to the villi can lead to malnutrition. (Injury to these projections causes poor nutrient absorption.)

  • Botany:

    • The surface of the peach fruit is covered with delicate villi. (Fine, hair-like structures cover the peach skin.)
    • Botanists study the villi on plant leaves to understand water retention. (Scientists examine these tiny hairs for their role in moisture conservation.)
Advanced Usage

  • "Microvilli": Even smaller projections on the surface of villi, further increasing absorption area.

    • Microvilli are microscopic extensions on the villi cells. (Tiny hairs on the villi themselves enhance nutrient uptake.)

  • "Intestinal villi": Specific term for villi in the digestive tract.

    • Celiac disease flattens the intestinal villi, reducing nutrient absorption. (The condition damages the finger-like structures in the gut.)
Variants and Related Words

  • Villus (n, singular): One individual finger-like projection.

    • Each villus is about 0.5–1.5 mm in length. (A single projection has this size range.)

  • Villous (adj): Covered with or resembling villi.

    • The villous surface of the intestine is crucial for digestion. (The hairy-like lining aids in food processing.)

  • Villiform (adj): Having the shape or structure of villi.

    • The villiform texture of the plant's fruit helps with seed dispersal. (The hair-like form assists in spreading seeds.)
Synonyms
  • Projection: A part that extends outward from a surface.
  • Hair: A fine, thread-like structure (in botanical contexts).
  • Fimbria: A fringe-like structure (in anatomy, similar to villi but often in the fallopian tubes).
Related Idioms
  • None: is a technical term primarily used in biology and medicine, with no common idiomatic expressions.
Phrasal Verbs
  • None: is a noun and does not form phrasal verbs.