cell nucleus cell nest • cell organ · · · Info · Definitions · Synonyms · Characters · · cell nucleus · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) a part of the cell containing DNA and RNA and responsible for growth and reproduction. Synonyms: nucleus, cell nucleus, karyon. · · Noun Definition 1 Synonyms · · · nucleus · · Synonym 1 karyon · · Synonym 2 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C n latin small letter n U+006E s latin small letter s U+0073 u latin small letter u U+0075