Which combining form corresponds to the term for "cornea"?

The combining form that corresponds to the term for "cornea" is kerat/o. This combining form is derived from the Greek word "kerato" which specifically refers to the cornea of the eye. In medical terminology, kerat/o is widely used in various contexts related to the eye, including conditions such as keratitis (inflammation of the cornea) and keratoconus (a condition where the cornea becomes thin and bulges).

It is important to understand that combining forms are used in medical language to help create terms that describe conditions, procedures, and structures. The other options represent different anatomical structures or conditions unrelated to the cornea. For example, gnos/o pertains to knowledge or understanding typically in the context of diagnosis, lip/o relates to fat, and myc/o refers to fungi. Thus, kerat/o is indeed the accurate choice when referring to the cornea.