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rheostat

Syllabification: (rhe·o·stat)
Pronunciation: /ˈrēəˌstat/

Definition of rheostat

noun

  • an electrical instrument used to control a current by varying the resistance.

Derivatives

rheostatic

Pronunciation: /ˌrēəˈstatik/

adjective

Origin:

mid 19th century: from Greek rheos 'stream' + -stat

rheostat in other Oxford dictionaries

Definition of rheostat in the British & World English dictionary

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