Rhizotrogus, rī-zō-trō′gus, n. a genus of melolonthine beetles. [Gr. rhiza, root, trōgein, to gnaw.]
Rhodanic, rō-dan′ik, adj. (chem.) producing a rose-red colour. [Gr. rhodon, a rose.]
Rhodeina, rō-dē-ī′na, n. a group of cyprinoid fishes—its typical genus, Rhō′dēus. [Gr. rhodon, rose.]
Rhodeoretin, rō-dē-or′e-tin, n. one of the elements of resin of jalap.—adj. Rhodeoretin′ic. [Gr. rhodon, rose, rhētinē, resin.]
Rhodian, rō′di-an, adj. pertaining to Rhodes.—Rhodian laws, the earliest system of marine law; Rhodian school, a school of Hellenistic sculpture, of which the Laocoon is the greatest product.
Rhodites, rō-dī′tēz, n. a genus of gallflies infesting the rose. [Gr. rhoditēs, rosy—rhodon, a rose.]
Rhodium, rō′di-um, n. a white, very hard metal, resembling aluminium, extracted from the ore of platinum, and so called from the rose-colour of its salts. [Gr. rhodon, a rose.]
Rhodium-wood, rō′di-um-wōōd, n. a sweet-scented wood.
Rhodocrinus, rō-dok′ri-nus, n. a genus of paleozoic encrinites. [Gr. rhodon, rose, krinon, lily.]
Rhododendron, rō-dō-den′dron, n. a genus of trees and shrubs of the natural order Ericaceæ, having evergreen leaves and large, beautiful flowers like roses. [Gr. rhodon, rose, dendron, tree.]