English

Noun

supereruption ‎(plural supereruptions)

1. (dentistry) Overeruption. [from 20th c.]
2. The massive eruption of a supervolcano. [from 20th c.]
   • 2012, George Dyson, Turing's Cathedral, Penguin 2013, p. 204:

     The Los Alamos mesa rested against the eastern slope of the Jemez Mountains, on the rime of the Valles Caldera, formed as a result of two explosive super-eruptions 1.6 and 1.1 million years ago.