What does the term 'cabin pressure' refer to?

The term 'cabin pressure' specifically refers to the pressure inside the passenger compartment of an aircraft. This pressure is maintained at a level that is comfortable and safe for passengers and crew, despite the decreasing atmospheric pressure at higher altitudes.

Aircraft are pressurized to ensure that the oxygen levels remain sufficient for breathing and to prevent altitude sickness, which can occur in an unpressurized environment. The cabin pressure is carefully controlled and monitored by the aircraft's environmental control systems to maintain a safe and comfortable environment throughout the flight.

While the other contexts mention different types of pressures related to an aircraft, cabin pressure focuses uniquely on the environment within the passenger area. This makes it a critical aspect of flight safety and comfort.