nuclear family nuclear explosion • nuclear fission · · · Info · Definitions · Synonyms · Characters · · nuclear family · · Text Common · · Latin · · Scripts 14 · · Length 5 · · Syllables Definitions · · · (noun) a family consisting of parents and their children and grandparents of a marital partner. Synonyms: nuclear family, conjugal family. · · Noun Definition 1 Synonyms · · · conjugal family · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075 y latin small letter y U+0079