Definition of rheostatic in US English:

rheostatic

adjective

  • See rheostat

    • ‘Furthermore, in keeping with the principle of providing ‘rheostatic capability,’ the U.S. Department of Defense is trying to develop weapons which allow it to select a ‘duration of effects.’’
    • ‘We power out of Kananook along the straight track, and the customary hiss of the westinghouse air brake combines with the downward-grinding sound of the rheostatic brakes to alert us to our arrival at Frankston.’
    • ‘This characteristic - a ‘rheostatic’ or ‘tunable’ quality - will allow commanders to increase or decrease the degree of influence used to effect compliance.’

Pronunciation

rheostatic

/ˌrēəˈstatik/