1. of or relating to the chemical composition and chemical processes of celestial bodies and the universe
Usage: technical; scientific

Examples

• Cosmochemical analysis of meteorites reveals the elemental abundances in the early solar system.
• The cosmochemical properties of lunar samples have provided insights into the Moon's formation.
• Scientists use cosmochemical data to understand the distribution of elements throughout the galaxy.
• Cosmochemical studies help explain how heavy elements are synthesized in stars.
• The cosmochemical composition of comets differs significantly from that of asteroids.