Search Result for "plinian eruption":
Wordnet 3.0

NOUN (1)

1. a volcanic eruption in which a stream of gas and ash is violently ejected to a height of several miles; 



WordNet (r) 3.0 (2006):

Plinian eruption
    n 1: a volcanic eruption in which a stream of gas and ash is
         violently ejected to a height of several miles