octavation

== English == === Etymology === First attested in 1922; probably formed as octav(e) +‎ -ation, but compare octavate. === Pronunciation === IPA(key): /ˈɒktəveɪʃən/, /ˈɒkteɪveɪʃən/ === Noun === octavation (plural octavations) (music) Transposition by an octave. 1988, William Primrose quoted by David J. Dalton in Playing the Viola, page 202 I arranged ‘octavations’ which seemed to me to give the two movements greater elegance and litheness. 1996 August 19th–24th, Lydia Ayers and Andrew Horner [eds.], Proceedings of the 1996 International Computer Music Conference, page 127 The method provides a simple control mechanism to provide spectral morphing via the octavation parameter. (rare) Normalization of a numerical ratio by repeated multiplication or division by 2. 1922, Frank Ebenezer Miller, Vocal Art-Science and Its Application (2nd edition), pages 230 and 240 It may be said that the sex question is both brain stem and pelvic stem in its fourfold octavation with its stabilizing governor, the pituitary body. These consist in coördination and correlation, the sex relation of octavation of voice and pitch. (astrology, rare) The relationship between two planets that are distant from each other by one eighth of a great circle (45.625 degrees) 1947, George Llewellyn, Improved Perpetual Planetary Hour Book (rev. ed.), page 170 This octavation will be qualified (and perhaps rendered nil) if on a day when Uranus is well aspected its octave Mercury should be adversely aspected, or vice versa. (mathematics) Conversion (of the expression of a number) from denary to octal notation. 1973, Donald E. Knuth, The Art of Computer Programming (2nd edition) II: “Seminumerical Algorithms”, page 309 The 18th century American mathematician Hugh Jones used the words “octavation” and “decimation” to describe octal/decimal conversions. ==== Related terms ==== octavate, octavated, octavating