pluton plutomania • plutonian · · · Info · Definitions · Synonyms · Characters · · pluton · · Text Latin · · Script 6 · · Length 2 · · Syllables Definitions · · · (noun) large mass of intrusive igneous rock believed to have solidified deep within the earth. Synonyms: batholith, batholite, plutonic rock. · · Noun Definition 1 Synonyms · · · batholith · · Synonym 1 batholite · · Synonym 2 plutonic rock · · Synonym 3 Characters · · l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 t latin small letter t U+0074 u latin small letter u U+0075