(plural supervolcanoes or supervolcanos)
super- + volcano, coined in a 2000 documentary about the Yellowstone Caldera.
"supervolcano." YourDictionary, n.d. Web. 14 September 2018. <http://www.yourdictionary.com/supervolcano>.
supervolcano. (n.d.). Retrieved September 14th, 2018, from http://www.yourdictionary.com/supervolcano
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