magnetohydrodynamic arcjet

magnetohydrodynamic arcjet

[mag¦nēd·ō‚hī·drə·dī′nām·ik ′ärk‚jet]
(aerospace engineering)
An electromagnetic propulsion system utilizing a plasma that is heated in an electric arc and then adiabatically expanded through a nozzle and further accelerated by a crossed electric and magnetic field.