Fumarole
/ˈfjuːmərəʊl/
Definition 1 of 1
Pro Tip 1/3Not Just Smoke
Fumaroles release more than smoke; steam and gases like sulfur are common. 
Scientists sampled gases from a fumarole to analyze the volcano's activity.
Pro Tip 2/3Natural Phenomenon
Fumaroles are natural geological occurrences, primarily near volcanoes and tectonic areas. 
The fumarole was a clear sign of the volcano's underlying heat.
Pro Tip 3/3Use in Geothermal
Fumaroles may be harnessed for geothermal energy, an eco-friendly power source. 
A geothermal plant near the fumarole generates electricity for the local community.