1. of, relating to, or occurring in the exosphere, the outermost layer of Earth's atmosphere
Usage: scientific/technical term; commonly used in atmospheric science and space science

Examples

• Exospheric temperatures can reach thousands of degrees Celsius.
• Satellites operate in the exospheric region of the atmosphere.
• The exospheric layer extends from about 500 kilometers to the edge of space.
• Exospheric atoms and molecules escape into space at a slow rate.
• Scientists study exospheric composition to understand atmospheric loss.