| bitter orange peel oil | A volatile oil obtained by expression from the fresh peel of the bitter orange. (05 Mar 2000) |
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| Victoria orange | An alkaline salt of dinitrocresol; a reddish yellow stain formerly used in histology. (05 Mar 2000) |
| peau d'orange | A swollen pitted skin surface overlying carcinoma of the breast in which there is both stromal infiltration and lymphatic obstruction with oedema. Origin: Fr. Orange peel (05 Mar 2000) |
| methyl orange | C14H14N3O3SNa;a weakly acid dye used as a pH indicator (red at 3.2, yellow at 4.4). Synonym: helianthine. (05 Mar 2000) |
| sea orange | <zoology> A large American holothurian (Lophothuria Fabricii) having a bright orange convex body covered with finely granulated scales. Its expanded tentacles are bright red. Source: Websters Dictionary (01 Mar 1998) |
| oil of bitter orange | Volatile oil obtained by steam distillation from the fresh peel of Citrus aurantium (family Rutaceae). Aromatic material used as a flavoring agent in pharmaceuticals and foods and liquors; also used in perfumes. (05 Mar 2000) |
| orange | 1. <botany> The fruit of a tree of the genus Citrus (Citrus Aurantium). It is usually round, and consists of pulpy carpels, commonly ten in number, inclosed in a leathery rind, which is easily separable, and is reddish yellow when ripe. There are numerous varieties of oranges; as, the bitter orange, which is supposed to be the original stock; the navel orange, which has the rudiment of a second orange imbedded in the top of the fruit; the blood orange, with a reddish juice; and the horned orange, in which the carpels are partly separated. 2. <botany> The tree that bears oranges; the orange tree. 3. The colour of an orange; reddish yellow. 4. <zoology> Mock orange, any species of scale insects which infests orange trees; especially, the purple scale (Mytilaspis citricola), the long scale (Mytilaspis Gloveri), and the red scale (Aspidiotus Aurantii). Origin: F.; cf. It. Arancia, arancio, LL. Arangia, Sp. Naranjia, Pg. Laranja; all fr. Ar. Naranj, Per. Naranj, narang; cf. Skr. Naranga orange tree. The o- in F. Orange is due to confusion with or gold, L. Aurum, because the orange resembles gold in colour. (06 Mar 1998) |
| orange G | An azo dye, C16H10N2O7S2Na2, used as a cytoplasmic stain in histologic techniques. (05 Mar 2000) |
| orange wood | A soft wood used in dentistry for placement of bridges, crowns, etc. By biting pressure, also used as a burnishing point in the polishing of root surfaces. (05 Mar 2000) |
| osage orange | <botany> An ornamental tree of the genus Maclura (M. Aurantiaca), closely allied to the mulberry (Morus); also, its fruit. The tree was first found in the country of the Osage Indians, and bears a hard and inedible fruit of an orangelike appearance. See Bois d'arc. Source: Websters Dictionary (01 Mar 1998) |