Intestinal (adjective)

1. Relating to or affecting the intestines.
2. Situated within or inside the intestines.

Origin:

Early 17th century: from latin intestinum, from intus "within" + tenuis "thin".

Examples:

1. The intestinal tract is responsible for digestion and absorption of food.
2. Intestinal problems can cause stomach pain and discomfort.
3. The intestinal flora is a complex ecosystem of microorganisms that live in the gut.
4. Intestinal parasites can cause serious health problems.
5. The intestinal wall is lined with villi and microvilli to increase the surface area for nutrient absorption.