from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The chemistry of stars and interstellar space.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The study of the chemical composition of stars and outer space
from the GNU version of the Collaborative International Dictionary of English
- n. the branch of science involving astronomy and chemistry which studies the chemical composition, chemical reactions, and evolution of matter in outer space.
from The Century Dictionary and Cyclopedia
- n. That part of astronomy which treats of what is known of the chemistry of the celestial bodies.
Sorry, no etymologies found.