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Volcanic bomb
(gcide) | Volcanic \Vol*can"ic\, a. [Cf. F. volcanique, It. vulcanico.]
1. Of or pertaining to a volcano or volcanoes; as, volcanic
heat.
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2. Produced by a volcano, or, more generally, by igneous
agencies; as, volcanic tufa.
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3. Changed or affected by the heat of a volcano.
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Volcanic bomb, a mass ejected from a volcano, often of
molten lava having a rounded form.
Volcanic cone, a hill, conical in form, built up of
cinders, tufa, or lava, during volcanic eruptions.
Volcanic foci, the subterranean centers of volcanic action;
the points beneath volcanoes where the causes producing
volcanic phenomena are most active.
Volcanic glass, the vitreous form of lava, produced by
sudden cooling; obsidian. See Obsidian.
Volcanic mud, fetid, sulphurous mud discharged by a
volcano.
Volcanic rocks, rocks which have been produced from the
discharges of volcanic matter, as the various kinds of
basalt, trachyte, scoria, obsidian, etc., whether compact,
scoriaceous, or vitreous.
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Volcanic bomb
(gcide) | Bomb \Bomb\, n. [F. bombe bombshell, fr. L. bombus a humming or
buzzing noise, Gr. ?.]
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1. A great noise; a hollow sound. [Obs.]
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A pillar of iron . . . which if you had struck,
would make . . . a great bomb in the chamber
beneath. --Bacon.
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2. (Mil.) A shell; esp. a spherical shell, like those fired
from mortars. See Shell.
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3. A bomb ketch.
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Bomb chest (Mil.), a chest filled with bombs, or only with
gunpowder, placed under ground, to cause destruction by
its explosion.
Bomb ketch, Bomb vessel (Naut.), a small ketch or vessel,
very strongly built, on which mortars are mounted to be
used in naval bombardments; -- called also {mortar
vessel}.
Bomb lance, a lance or harpoon with an explosive head, used
in whale fishing.
Volcanic bomb, a mass of lava of a spherical or pear shape.
"I noticed volcanic bombs." --Darwin.
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