What does the term hypodermic refer to?

The term "hypodermic" specifically refers to something that is situated or applied beneath the skin. In medical terminology, it is commonly associated with the use of needles or injections that penetrate the skin's surface to deliver medication or vaccines into the underlying tissues or directly into the bloodstream. The prefix "hypo-" means "under" or "below," while "dermic" relates to the skin, hence the combined meaning of "hypodermic" as "under the skin." This is why the correct choice accurately represents the meaning of the term in a medical context.