What symptom is defined as intense itching?

The definition of intense itching is pruritus. This term is commonly used in medical settings to describe a sensation that creates a desire to scratch. Pruritus can be a symptom of various conditions, such as skin disorders, allergic reactions, or systemic diseases like liver or kidney issues.

The other terms listed refer to different physiological symptoms: polydipsia relates to excessive thirst, hyperglycemia indicates elevated blood glucose levels, and polyuria refers to increased urination. Understanding these terms is crucial for differentiating between various clinical presentations and conditions in practice.