fumarole

[fyoo-muh-rohl] /ˈfyu məˌroʊl/
noun
1.
a hole in or near a volcano, from which vapor rises.
Origin of fumarole
1805-15; < French fumerolle < Late Latin fūmāriōlum, diminutive of Latin fūmārium smoke chamber, equivalent to fūm(us) smoke + -ārium -arium; see -ole1
Related forms
fumarolic
[fyoo-muh-rol-ik] /ˌfyu məˈrɒl ɪk/ (Show IPA), adjective
Can be confused
caldera, fumarole, geyser, volcano.
Examples from the web for fumarole
  • fumarole-Vents from which volcanic gas escapes into the atmosphere.
British Dictionary definitions for fumarole

fumarole

/ˈfjuːməˌrəʊl/
noun
1.
a vent in or near a volcano from which hot gases, esp steam, are emitted
Derived Forms
fumarolic (ˌfjuːməˈrɒlɪk) adjective
Word Origin
C19: from French fumerolle, from Late Latin fūmāriolum smoke hole, from Latin fūmus smoke
fumarole in Science
fumarole
  (fy'mə-rōl')   
A vent in the surface of the Earth from which hot smoke and gases escape. Fumaroles are found on or near volcanoes, especially in areas where volcanic activity is in its later stages.