fumarole
Concise Oxford English Dictionary © 2008 Oxford University Press:
fumarole /ˈfjuːmərəʊl/
▶noun an opening in or near a volcano, through which hot sulphurous gases emerge.
– derivatives
fumarolic adjective.
fumarolic adjective.
– origin C19: from obs. Ital. fumaruolo, from late L. fumariolum ‘vent, hole for smoke’.
'fumarole' also found in these Oxford entries:

