Volcanic

adjective

To do with volcanoes. Volcanic rocks are rocks made by volcanoes; volcanic activity is anything a volcano is doing; a volcanic island is an island that started life as a volcano rising out of the sea.

Geotechnical Engineering — Cracker
Go Deeper For parents & teachers
Pertaining to volcanoes, their eruptions, and the rocks, gases, and landforms they produce. The word shows up across several disciplines — volcanic rock (geology), volcanic ash (atmospheric science), volcanic arc (tectonics), volcanic winter (climate science). The whole set of processes associated with volcanic systems is called volcanism.

Appears In

The Burning Mountain Chapter 1 — When the Mountain Roared

"… numbers or vent models or what different tremor waves meant through old volcanic rock. They did not need to. They knew adult voices. They knew when …"

The Burning Mountain Chapter 12 — When Plans Break

"… beautifully in the tray and then collapsed the moment it touched real volcanic moisture - which was, from a materials science standpoint, an especially personal kind …"

The Burning Mountain Chapter 13 — The Cubs Who Helped Save the Mountain

"… of the operations yard and declared, "At this critical point in a volcanic emergency, we shall now organise the cubs," half the adults in the valley …"

The Burning Mountain Chapter 16 — The Echo Under the Ridge

"… that was finally, cautiously, showing patches of ordinary grey instead of the volcanic kind."

Fun Fact

From Vulcan, the Roman god of fire and metalworking, who was said to have his forge inside Mount Etna in Sicily.

See Also

Caldera Eruption Lava Vent