[1] : The Collaborative International Dictionary of English v.0.48

volcanic \volcan"ic\, a. cf. f. volcanique, it. vulcanico.
   1. of or pertaining to a volcano or volcanoes; as, volcanic
      heat.
      1913 webster

   2. produced by a volcano, or, more generally, by igneous
      agencies; as, volcanic tufa.
      1913 webster

   3. changed or affected by the heat of a volcano.
      1913 webster

   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.
      1913 webster
see also:
volcanic bomb volcanic cone volcanic foci volcanic glass obsidian volcanic mud 
volcanic rocks 

[2] : The Collaborative International Dictionary of English v.0.48

bomb \bomb\, n. f. bombe bombshell, fr. l. bombus a humming or
   buzzing noise, gr. ?.
   1913 webster
   1. a great noise; a hollow sound. obs.
      1913 webster

            a pillar of iron . . . which if you had struck,
            would make . . . a great bomb in the chamber
            beneath.                              --bacon.
      1913 webster

   2. mil. a shell; esp. a spherical shell, like those fired
      from mortars. see shell.
      1913 webster

   3. a bomb ketch.
      1913 webster

   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.
      1913 webster
see also:
shell bomb chest bomb ketch bomb vessel mortar vessel bomb lance 
volcanic bomb 

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Bomb, definition of term: Bomb
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Atomic Bomb, definition of term: Atomic Bomb
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Atom Bomb >> A Words
Atom Bomb, definition of term: Atom Bomb
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