Fear of heights is called:

Phobias are intense, irrational fears of specific objects or situations, often leading to avoidance and significant distress. The fear of heights is medically termed Acrophobia. This term is derived from the Greek words "akron," meaning peak, summit, or edge, and "phobos," meaning fear. Individuals suffering from acrophobia experience extreme anxiety, panic attacks, and physical symptoms like dizziness or nausea when confronted with high places. Understanding the specific terminology helps in diagnosing and treating these conditions. In contrast, Arachnophobia is the fear of spiders, Nyctophobia is the fear of darkness, and Claustrophobia is the fear of confined spaces, making them incorrect choices for the fear of heights.