light ballast light baffle • light battery · · · Info · Definitions · Synonyms · Characters · · light ballast · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) an electrical device for starting and regulating fluorescent and discharge lamps. Synonyms: ballast, light ballast. · · Noun Definition 1 Synonyms · · · ballast · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C s latin small letter s U+0073 t latin small letter t U+0074