Definition of electropneumatic in English:

electropneumatic

Pronunciation /ɪˌlɛktrə(ʊ)njuːˈmatɪk/ /ɪˌlɛktrə(ʊ)njʊˈmatɪk/

adjective

  • Involving or relating to a combination of electrical and pneumatic power or operation.

Origin

Mid 19th century.