magnetic Mach number
magnetic Mach number
[mag′ned·ik ′mäk ‚nəm·bər] (plasma physics)
A dimensionless number equal to the ratio of the velocity of a fluid to the velocity of Alfvén waves in the fluid. Symbolized MMa .
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.