What is the combining form for 'buttock'?

The combining form for 'buttock' is indeed found in the term glute/o. This form is derived from the word "gluteus," which refers specifically to the muscles in the buttock region, including the gluteus maximus, gluteus medius, and gluteus minimus. In medical terminology, combining forms are essential for constructing terms related to specific body parts or functions, and glute/o is recognized universally as pertaining to the buttock area.

The other choices represent different anatomical terms: ili/o refers to the ilium, which is part of the hip bone; hom/o relates to sameness or similarity and is not anatomical; and infer/o indicates a position lower than another structure (lower in the body). Understanding these roots helps in deciphering and using medical terminology effectively.