Geraniine \Ge*ra"ni*ine\, Geranine \Ger"a*nine\, n. [See {Geranium}.] 1. (Med.) A valuable astringent obtained from the root of the {Geranium maculatum} or crane's-bill. 2. (Chem.) A liquid terpene, obtained from the crane's-bill ({Geranium maculatum}), and having a peculiar mulberry odor. [Written also {geraniin}.]