volcanic

1 of 2

adjective

vol·​ca·​nic väl-ˈka-nik How to pronounce volcanic (audio)
vȯl-
also -ˈkā-
Synonyms of volcanicnext
1
a
: of, relating to, or produced by a volcano
b
: characterized by volcanoes
a volcanic range
c
: made of materials from volcanoes
2
: explosively violent : volatile
volcanic emotions
volcanically
väl-ˈka-ni-k(-ə)lē How to pronounce volcanic (audio)
vȯl-
also -ˈkā-
adverb

volcanic

2 of 2

noun

: a volcanic rock

Examples of volcanic in a Sentence

Adjective a man with a volcanic temper that could go off at any moment
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Their soils range from light volcanic sand to dense basalt rock, often layered with ash from relatively recent eruptions. Emily Price, Forbes.com, 24 Jan. 2026 The moon's near side is familiar to us through the pattern of the 'Man in the Moon' that is made from the dark shapes of the lunar maria, which are vast volcanic plains. Keith Cooper, Space.com, 23 Jan. 2026
Noun
Volcanologists also warned of tephra, or hot glassy volcanic fragments, as well as volcanic ash, pumice, scoria and reticulite, which can fall on the ground within one to three miles of the eruptive vents. Julia Jacobo, ABC News, 8 Dec. 2025 Communications can turn volcanic when Mercury meets Mars in Scorpio. Usa Today, USA Today, 20 Oct. 2025 See All Example Sentences for volcanic

Word History

First Known Use

Adjective

1776, in the meaning defined at sense 1a

Noun

1801, in the meaning defined above

Time Traveler
The first known use of volcanic was in 1776

Browse Nearby Words

Cite this Entry

“Volcanic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/volcanic. Accessed 25 Jan. 2026.

Kids Definition

volcanic

adjective
vol·​ca·​nic
väl-ˈkan-ik
vȯl-
also -ˈkān-
1
a
: of, relating to, or produced by a volcano
a volcanic eruption
b
: made of materials from volcanoes
volcanic dust
2
: explosively violent
a volcanic rage

More from Merriam-Webster on volcanic

Last Updated: - Updated example sentences
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