rhodanthe | (noun) Australian annual everlasting having light pink nodding flower heads; sometimes placed in genus Helipterum | Synonyms: Helipterum manglesii, Rhodanthe manglesii, Swan River everlasting |
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rhodium | (noun) a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum | Synonyms: atomic number 45, Rh |
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rhodochrosite | (noun) a mineral consisting of manganese carbonate; a source of manganese | - |
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rhododendron | (noun) any shrub of the genus Rhododendron: evergreen shrubs or small shrubby trees having leathery leaves and showy clusters of campanulate (bell-shaped) flowers | - |
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rhodolite | (noun) a red or pink variety of garnet used as a gemstone | - |
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rhodomontade | (noun) vain and empty boasting | Synonyms: bluster, braggadocio, rodomontade |
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rhodonite | (noun) a pink or red mineral consisting of crystalline manganese silicate; used as an ornamental stone | - |
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rhodopsin | (noun) a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light | Synonyms: retinal purple, visual purple |
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