tri·atom·ic /ˌtraɪəˈtɑmɪk/
三原子的
tri·atom·ic /ˌtraɪəˈtɑmɪk/ 形容詞
三原子的,三羥的
Tri·a·tom·ic a. Chem. (a) Having three atoms; -- said of certain elements or radicals. (b) Having a valence of three; trivalent; sometimes, in a specific sense, having three hydroxyl groups, whether acid or basic; thus, glycerin, glyceric acid, and tartronic acid are each triatomic.
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