Definition of lava dome in English:

lava dome

Syllabification: la·va dome


  • A mound of viscous lava that has been extruded from a volcanic vent.
    More example sentences
    • Experts watching a recent spike in volcanic activity say a lava dome in the mountain's crater is growing.
    • Geologists said the lava dome inside the volcano is now deforming, or growing, by tens, maybe hundreds, of feet.
    • Rising magma continues to build a lava dome in the crater of Mount St. Helens.

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Pronunciation: ˈmeɪlstrəm
a powerful whirlpool in the sea