Pronunciation: (mag-nē'tō-hī"drō-dī-nam'iks), [key]
—n. (used with a sing. v.)
the branch of physics that deals with the motion of electrically conductive fluids, esp. plasmas, in magnetic fields. Abbr.: MHD Also called hydromagnetics, magnetofluid dynamics, magnetogasdynamics, magnetoplasmadynamics.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.