boiling water reactor boiling stone • boilover · · · Info · Definitions · Synonyms · Characters · · boiling water reactor · · Text Common · · Latin · · Scripts 21 · · Length 7 · · Syllables Definitions · · · (noun) a nuclear reactor that uses water as a coolant and moderator; the water boils in the reactor core and the steam produced can drive a steam turbine. Synonyms: boiling water reactor, BWR. · · Noun Definition 1 Synonyms · · · bwr · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 w latin small letter w U+0077