Which combining form means small intestine?

• A. Enter/o
• B. Neur/o
• C. Melan/o
• D. Tonsill/o

Answer: (A)

Combining forms link a root to suffixes and name a body part. The one that means the small intestine is enter/o. This form shows up in terms like enteritis (inflammation of the small intestine) and enteropathy (disease of the intestine), and it’s used to indicate intestinal tissue in general. For contrast, neur/o means nerve, melan/o means pigment or black, and tonsill/o refers to the tonsils. So enter/o is the correct combining form for the small intestine.