Final answer:
The term pertaining to pus is called purulent, and it is used to describe suppurative infections of the skin.
Step-by-step explanation:
The correct answer is Purulent. Purulent means pertaining to pus or the production of pus. It is used to describe any suppurative infection of the skin or any condition that involves the accumulation of dead pathogens, neutrophils, tissue fluid, and other cells at the site of an infection.
Examples of conditions that may be described as purulent include acne, furuncles, and abscesses, which are all characterized by the presence of pus-filled lesions on the skin.