This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The geology of celestial bodies.

n. The science dealing with the structure and composition of planets and other bodies in the solar system.

"ASLA astrogeology avalanche bioremediation blogs border"

astrobiology   

astrogeological    astrogeologist   

Egyptology    Scientology    anesthesiology    anthology    anthropology    apology    archaeology    archeology    astrology    bacteriology