Which anatomical term is used to refer to the region of the abdomen?

The term "celiac" specifically refers to the region of the abdomen, particularly in relation to the celiac trunk, which is a major blood vessel that supplies blood to the abdominal organs. In anatomy, "celiac" is often used to describe structures, conditions, or functions related to the abdominal area. For example, the celiac plexus is a network of nerves located in the abdominal cavity that serves the organs in that region. This term is derived from the Latin word "coeliacus," meaning "pertaining to the belly."

In the context of the other terms provided, "coxal" relates to the hip region, "cephalic" pertains to the head, and "cubital" refers to the elbow. Each of these terms is associated with distinct anatomical locations in the body, making "celiac" the appropriate choice for a term that denotes the abdominal region.