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Definitions

magma

[mag-muh] / ˈmæg mə /
NOUN
lava
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Some vents are powered by heat from volcanic activity deep within Earth, while others form through chemical reactions between water and rock that generate heat without magma.

From Science Daily • Apr. 3, 2026

Seama says, "Due to its extent and location it is clear that this is in fact the same magma reservoir as in the previous eruption."

From Science Daily • Mar. 29, 2026

The magma currently present does not appear to be leftover from the earlier eruption.

From Science Daily • Mar. 29, 2026

Beneath its surface lies a vast magma ocean extending thousands of kilometers deep.

From Science Daily • Mar. 17, 2026

This wasn’t hard rock against hard rock; harmonic tremors were earthquakes of solid rock against magma, “like squishy rock sliding on solid rock,” explained Malone.

From "Mountain of Fire" by Rebecca E. F. Barone




Vocabulary lists containing magma