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Rhodes grass an African creeping grass grown for forage in the southern United States.
Rhodesia Southern Rhodesia, the former name of Zimbabwe. [2 definitions]
Rhodesian man an extinct primitive man of the late Pleistocene Era, whose skeletal remains, found in southern Africa, are similar to modern man except for a large skull and low, massive brow ridges.
Rhodesian ridge-back a large, muscular breed of hunting dog developed in southern Africa that has a tan or tannish red coat and a ridge along the spine formed by the hairs growing forward rather than with the rest of the coat.
Rhodes scholarship any of a number of scholarships at Oxford University in England, established for selected British Commonwealth and U.S. students.
rhodium a chemical element that has forty-five protons in each nucleus and that occurs in pure form as a silvery-white, very corrosion-resistant metal, used esp. to electroplate instruments and jewelry and as a catalyst. (symbol: Rh)
rhodo- rose.
rhodochrosite a rose-pink, brown, or gray mineral composed of manganese carbonate that typically occurs as rhombohedral crystals and is important commercially as a source of manganese.
rhododendron any of various shrubs or trees with leathery evergreen leaves and clusters of bright pink, red, purple, white, or yellow flowers.
rhodolite a pink, rose-red, or reddish violet variety of garnet, used as a gemstone.
rhodopsin the red, light-sensitive protein pigment that is present in the retina of the eye and provides vision in dim light.
rhombencephalon the embryonic hindbrain, from which the cerebellum, pons, and medulla oblongata develop.
rhombic in the form of a rhombus. [4 definitions]
rhombohedron a six-sided solid figure with a rhombus on each face.
rhomboid a parallelogram in which the opposite sides are equal, the adjacent sides are unequal, and the angles are oblique. [2 definitions]
rhomboideus either of two muscles that connect the vertebrae in the upper back to the shoulder blades.
rhombus an oblique-angled parallelogram in which all four sides are equal.
Rh positive having the Rh factor in the red blood cells.
rhubarb a cultivated plant with long green or reddish leaf stalks, which are often cooked with sugar and eaten like a fruit.
rhumb see rhumb line. [2 definitions]
rhumba variant of rumba.