plinian eruption Plinian • plinth · · · Info · Definitions · Characters · · plinian eruption · · Text Common · · Latin · · Scripts 16 · · Length 6 · · Syllables Definitions · · · (noun) a volcanic eruption in which a stream of gas and ash is violently ejected to a height of several miles. Synonyms: Plinian eruption. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 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 p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075