WordReference Random House Unabridged Dictionary of American English © 2025
cos•mo•chem•is•try
(koz′mə kem′ə strē),USA pronunciation n.
cos′mo•chem′ist, n.
cos•mo•chem•i•cal
(koz′mə kem′i kəl),USA pronunciation adj.
- Chemistrythe science dealing with the occurrence and distribution of chemical elements in the universe.
- 1935–40; cosmo- + chemistry