- an opening in the earth's crust from which molten lava, rock fragments, ashes, dust, and gases are ejected from below the earth's surface
- a mountain formed from volcanic material ejected from a vent in a central crater
WordReference Random House Learner's Dictionary of American English © 2026
vol•ca•no /vɑlˈkeɪnoʊ/USA pronunciation
n. [countable], pl. -noes, -nos.
WordReference Random House Unabridged Dictionary of American English © 2026- Geologya vent in the earth's crust through which lava, steam, ashes, etc., are given off, either continuously or at intervals.
- Geologya mountain or hill, usually having a cuplike crater at the top, that was formed around such a vent from the ash and lava that were given off from it.
vol•ca•no
(vol kā′nō),USA pronunciation n., pl. -noes, -nos.
- Geologya vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals.
- Geologya mountain or hill, usually having a cuplike crater at the summit, formed around such a vent from the ash and lava expelled through it.
- Latin Volcānus, variant of Vulcānus Vulcan
- Italian
- 1605–15
Collins Concise English Dictionary © HarperCollins Publishers::
volcano /vɒlˈkeɪnəʊ/ n ( pl -noes, -nos)
'volcano' also found in these entries (note: many are not synonyms or translations):
active
- Antisana
- Apo
- ash
- Askja
- caldera
- Cameroon
- Chimborazo
- chimney
- Citlaltépetl
- Colima
- Corcovado
- Cotopaxi
- crater
- dormant
- Elgon
- El Misti
- Erciyes Daği
- Erebus
- eruct
- Etna
- extinct
- extrusion
- Fuji
- fumarole
- Haleakalā
- Hekla
- Herculaneum
- Huascarán
- Iliamna
- Iwo Jima
- Ixtaccihuatl
- Katmai
- Kazan-rettō
- Kazbek
- Kenya
- Kīlauea
- lahar
- lapillus
- Lassen Peak
- live
- Lowry
- Mauna Kea
- Mauna Loa
- Mayon
- mouth
- neck
- Paricutín
- Pelée
- pipe