单词 | magneto-acoustic |
释义 | > as lemmasmagneto-acoustic magneto-acoustic adj. Brit. /maɡˌniːtəʊəˈkuːstɪk/ , U.S. /mæɡˌnidoʊəˈkustɪk/ , /mæɡˌnɛdoʊəˈkustɪk/ Physics designating or relating to the magnetic and acoustic properties of a substance or their interaction; spec. hydromagnetic.ΘΚΠ the world > matter > physics > science of sound > [adjective] acoustic1640 acoustical1803 phonic1823 magneto-acoustic1903 audio1960 1903 Electr. World & Engineer 29 Aug. 340/1 From a magnetic standpoint, ferrotype leaves something to be desired, and from a magneto-acoustic one the writer has often wondered why a spun diaphragm that was thick in the center..and thin around the circumference..has never been advocated. 1964 M. A. Uman Introd. Plasma Physics xiii. 157 A hydromagnetic wave whose time-varying magnetic field is parallel to the uniform static magnetic field is often called a magnetoacoustic wave. 1992 S. P. Maran Astron. & Astrophysics Encycl. 330/2 The magnetoacoustic wave is a compressive disturbance that moves at the magnetoacoustic speed in the direction perpendicular to the magnetic field. < as lemmas |
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