homopolarPronunciation: /ˌhəʊmə(ʊ)ˈpəʊlə, ˌhɒmə(ʊ)-/Definition of homopolar adjective having equal or constant electrical polarity. (of an electric generator) producing direct current without the use of commutators. homopolar in other Oxford dictionaries Definition of homopolar in the US English dictionary