orchestration

[Eng. orchestr (a); -ation.] The arrangement of music for an orchestra; instru mentation. or-ches-tric, adj . [Eng. orchestr (a); -ic.] Pertaining or relating to an orchestra; orchestral. or-chěs-tri-nō, s . [Ital.] ör-chěs-tri-on, s. [ORCHESTRA.) Music: A musical instrument, resembling a portable organ. It was invented by the Abbé Vogler about 1789. The name is now given to an instrument capable of producing the effects of an entire or chestra. ers irregularly clustered, spiked, racemose, or panicled, with a solitary bract. Perianth adherent, in two or three rows, sometimes resupinate; sepals three, petals three, stamens and style consolidated into a central column, stamens three, only one perfect; ovary often twisted, one-celled, of six carpels, with three parietal placente. Fruit generally capsular; seeds very numerous, minute. All the species are terrestrial in temperate latitudes; in the tropics many are epiphytes, growing on trees. They are remarkable for their irregular flowers, often very beautiful, sometimes very fragrant. Found in nearly all climates. Known genera 400; species 3,000. Divided into seven tribes: Malaxee, Epidendrese, Vandee, Ophree, Are thu see, Neottese, and Cypripedeæ.