volcano
/vɔl'keinou/
Học thuậtThân thiện
Definition
- Noun:
- A mountain formed by volcanic material: A volcano is a geological landform, typically a mountain, that is built up from the accumulation of erupted materials such as lava, ash, and rock fragments.
- A fissure in the earth's crust: A volcano is also the vent or opening through which molten rock (magma or lava), ash, and gases are expelled from the Earth's interior to the surface.
Examples
- Noun:
- Mount Fuji in Japan is a famous volcano.
- The volcano erupted violently, sending a plume of ash high into the atmosphere.
- Scientists are monitoring the volcano for signs of activity.
Advanced Usage
- "to be a volcano of emotion": To be full of intense, pent-up feelings that could erupt.
- After the argument, he was a volcano of suppressed anger.
- "dormant volcano": A volcano that is not currently erupting but is considered capable of erupting in the future.
- The city is built near a dormant volcano.
- "extinct volcano": A volcano that is not expected to erupt ever again.
- The island is an extinct volcano.
Variants and Related Words
- Volcanic (adj): Of, relating to, or produced by a volcano.
- Volcanic ash can disrupt air travel.
- Volcanism (n): The phenomena associated with volcanic activity.
- Volcanology (n): The scientific study of volcanoes.
Synonyms
- Vent: An opening that allows the escape of gases or lava.
- Fumarole: A hole in or near a volcano, from which hot gases and vapors are emitted.
Related Phrases
- "to sit on a volcano": To be in a very dangerous or unstable situation.
- The political situation was so tense, it felt like sitting on a volcano.
- "volcano of information": A source of a vast amount of information.
- The ancient library was a volcano of information about the lost civilization.
Noun
- a mountain formed by volcanic material
- a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt