Dictionary.com
Thesaurus.com

magnetogasdynamics

American  
[mag-nee-toh-gas-dahy-nam-iks] / mægˈni toʊˌgæs daɪˈnæm ɪks /

noun

(used with a singular verb)
  1. magnetohydrodynamics.


Etymology

Origin of magnetogasdynamics

First recorded in 1965–70; magneto- + gas + dynamics