1. relating to or characterized by pressure lower than normal atmospheric pressure
Usage: technical; scientific

Examples

• Astronauts train in hypobaric chambers to simulate the conditions of space.
• The hypobaric environment at high altitudes affects oxygen availability in the blood.
• Hypobaric conditions can cause decompression sickness in divers who ascend too quickly.
• Research on hypobaric stress helps scientists understand how the body adapts to low pressure.
• The aircraft cabin maintains a hypobaric atmosphere during flight at cruising altitude.