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.
Definition of lava dome in:
- The British & World English dictionary