Which of the following is a term that refers to itchiness?

The term that refers to itchiness is pruritus. This word is derived from the Latin word "prurire," which means "to itch." Pruritus can occur for various reasons, including allergic reactions, skin conditions, infections, and systemic diseases. It is an important symptom that can indicate underlying health issues and can significantly impact a person's quality of life.

In contrast, rhinorrhea refers to the flow of mucus from the nasal cavity, commonly seen in conditions such as allergies or colds. Erythema indicates redness of the skin, often resulting from inflammation, irritation, or infection. Dermatitis is a term that describes inflammation of the skin, which can manifest as rashes and other skin reactions but does not specifically denote itchiness. Understanding these distinctions is crucial for accurate medical terminology and effective communication in clinical settings.