{ } n. [ See Geranium. ] [ 1913 Webster ]

1. (Med.) A valuable astringent obtained from the root of the Geranium maculatum or crane's-bill. [ 1913 Webster ]

2. (Chem.) A liquid terpene, obtained from the crane's-bill (Geranium maculatum), and having a peculiar mulberry odor. [ Written also geraniin. ] [ 1913 Webster ]

n. (Chem.) An alkaloid extracted from guarana. Same as Caffeine. [ 1913 Webster ]

a. [ L. rana a frog. ] 1. (Zool.) Of or pertaining to the frogs and toads. [ 1913 Webster ]

2. (Anat.) Pertaining to, or designating, a swelling under the tongue; also, pertaining to the region where the swelling occurs; -- applied especially to branches of the lingual artery and lingual vein. [ 1913 Webster ]

n. [ So called because used as a substitute for safranin. ] (Chem.) An orange-red nitrogenous dyestuff produced artificially by oxidizing certain aniline derivatives, and used in dyeing silk and wool; also, any one of the series of which safranine proper is the type. [ 1913 Webster ]