| rose-cut | Cut flat on the reverse, and with a convex face formed of triangular facets in rows; said of diamonds and other precious stones. See Rose diamond, under Rose. Cf. Brilliant. Source: Websters Dictionary (01 Mar 1998) |
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| rose-red | <zoology> Red as a rose; specifically, of a pure purplish red colour. Source: Websters Dictionary (01 Mar 1998) |
| Rose-Waaler test | A test of historical interest: when sheep red cells are suspended in a concentration of antiserum to sheep red cells which is too low to cause agglutination, the addition of serum from a patient with rheumatoid arthritis will cause agglutination. (05 Mar 2000) |
| roseate | Rose-coloured or rose-shaped. (09 Oct 1997) |
| rosebay | <botany> The oleander. Any shrub of the genus Rhododendron. An herb (Epilobium spicatum) with showy purple flowers, common in Europe and North America. Synonym: great willow herb. Source: Websters Dictionary (01 Mar 1998) |
| rosedrop | 1. A lozenge having a rose flavor. 2. A kind of earring. 3. <medicine> A ruddy eruption upon the nose caused by drinking ardent spirits; a grog blossom. Source: Websters Dictionary (01 Mar 1998) |
| rosefinch | <zoology> Any one of numerous species of Asiatic finches of the genera Carpodacus, and Propasser, and allied genera, in which the male is more or less coloured with rose red. Source: Websters Dictionary (01 Mar 1998) |
| rosefish | <zoology> A large marine scorpaenoid food fish (Sebastes marinus) found on the northern coasts of Europe and America. Synonym: red perch, hemdurgan, Norway haddok, and also, erroneously, snapper, bream, and bergylt. When full grown it is usually bright rose-red or orange-red; the young are usually mottled with red and ducky brown. Source: Websters Dictionary (01 Mar 1998) |
| rosehead | 1. See Rose. 2. A many-sided pyramidal head upon a nail; also a nail with such a head. Source: Websters Dictionary (01 Mar 1998) |
| roselite | <chemical> A hydrous arsenite of cobalt, occuring in small red crystals, allied to erythrite. Origin: From the German mineralogist G. Rose. Source: Websters Dictionary (01 Mar 1998) |
| rosella | <zoology> A beautiful Australian parrakeet (Platycercus eximius) often kept as a cage bird. The head and back of the neck are scarlet, the throat is white, the back dark green varied with lighter green, and the breast yellow. Origin: NL, dim. Of L. Rosa rose. Source: Websters Dictionary (01 Mar 1998) |
| roselle | <botany> A malvaceous plant (Hibiscus Sabdariffa) cultivated in the east and West Indies for its fleshy calyxes, which are used for making tarts and jelly and an acid drink. Source: Websters Dictionary (01 Mar 1998) |
| rosemaloes | The liquid storax of the East Indian Liquidambar orientalis. Origin: From the native name; cf. Malay rasamala the name of the tree. Source: Websters Dictionary (01 Mar 1998) |
| rosemary | A labiate shrub (Rosmarinus officinalis) with narrow grayish leaves, growing native in the southern part of France, Spain, and Italy, also in Asia Minor and in China. It has a fragrant smell, and a warm, pungent, bitterish taste. It is used in cookery, perfumery, etc, and is an emblem of fidelity or constancy. "There's rosemary, that's for remembrance." (Shak) Marsh rosemary. <medicine> A little shrub growing in cold swamps and having leaves like those of the rosemary. See Marsh. Rosemary pine, the loblolly pine. See Loblolly. Origin: OE. Rosmarine, L. Rosmarinus; ros dew (cf. Russ. Rosa, Lith. Rasa, Skr. Rasa juice) + marinus marine: cf. F. Romarin. In English the word has been changed as if it meant the rose of Mary. See Marine. Source: Websters Dictionary (01 Mar 1998) |
| rosemary oil | The volatile oil distilled with steam from the fresh flowering tops of Rosmarinus officinalis (family Labiatae); used as a flavoring and in perfumery. (05 Mar 2000) |