Final answer:
The medical term for rapid breathing is tachypnea, which indicates an increased respiratory rate. It is distinct from hyperventilation and is not related to terms like transurethral, remission, or perianal.
Step-by-step explanation:
The term that means rapid breathing is tachypnea. This is a medical term used to describe an increased rate of breathing, which is different from hyperventilation, where there is not only rapid but also deep breathing. In contrast, terms like transurethral, remission, and perianal refer to different medical conditions or anatomical positions and do not denote breathing patterns. When a person is experiencing tachypnea, their respiratory rate is quicker than what is considered normal; it is a symptom that can be associated with several conditions, such as respiratory infections, lung diseases, and other systemic disorders.