Which term refers to a small, red, elevated area of the skin that is solid and circumscribed?

The term that refers to a small, red, elevated area of the skin that is solid and circumscribed is "papular." Papules are defined as small, raised bumps on the skin that usually measure less than 1 cm in diameter. They can be red and can have various causes, including dermatological conditions like acne or eczema, insect bites, or allergic reactions. The circumscribed nature of papules means they have clear, defined borders, differentiating them from other types of skin lesions.

The other terms provided describe different skin lesions. "Macular" refers to flat areas of change in skin color that have no elevation, "pustular" pertains to lesions that contain pus, and "vesicular" describes fluid-filled blisters or sacs on the skin. Understanding these distinctions is crucial for accurately describing skin findings in a clinical context.