- gastrointestinal microvillus
- Minute projections of cell membranes which greatly increase the surface area of the cell.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- A microscopic projection of a tissue, cell, or cell organelle; especially : any of the fingerlike outward projections of some cell surfaces.
Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
See also Understanding Medical Terminology.