cosmochemical


cos·mo·chem·is·try

C0670200 (kŏz′mō-kĕm′ĭ-strē)n. The scientific study of the chemical composition of the universe, especially the early universe.
cos′mo·chem′i·cal (-ĭ-kəl) adj.cos′mo·chem′ist n.

cosmochemical

(ˌkɒzməˈkɛmɪkəl) adjrelating to cosmochemistry