magnetosonicadj.
/maɡˌniːtəʊˈsɒnɪk/, U.S. /mæɡˈˌnɛdoʊˈˌsɑnɪk/, /mæɡˈˌnidoʊˈˌsɑnɪk/ Physics.
Relating to or designating a type of magnetohydrodynamic wave that has two speeds of propagation (both functions of the magnetic field strength and of the speed of sound in the fluid), can travel in any direction relative to that of the field, and is characterized by a displacement of the fluid in any direction in the plane defined by the directions of propagation and of the field except the direction normal to the former.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > magnetism > types of magnetism > [adjective] > involving conducting fluid > type of wave
magnetosonic1962
the world > matter > physics > mechanics > dynamics > fluid dynamics > [adjective] > relating to hydrodynamics > of or involving magnetohydrodynamics > specific type of wave
magnetosonic1962
1962 W. B. Thompson Introd. Plasma Physics v. 84 There is remarkably little evidence for the propagation of magnetosonic waves through a plasma.
1962 W. B. Thompson Introd. Plasma Physics v. 91 In the magnetohydrodynamic case, there are three possible parametrizing velocities Cs, CA and the magnetosonic speed CT = √(CA2 + Cs2).
1971 Nature 13 Aug. 443/3 The Crab pulsar..seems to be associated with a series of wisps of gas... Wisps 2, 3 and 4 have been generated by the magnetosonic waves which this motion of Wisp 1 produces.
1989 Nature 16 Feb. 608/2 Part 2..starts with stationary waves including normal and collision-free shocks, ion-acoustic and magnetosonic waves.
This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).
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adj.1962