I
In volcanology, any unconsolidated volcanic material that has a diameter greater than 1.
25 in. (32 mm). Bombs form from clots of wholly or partly liquid lava ejected during a volcanic explosion; they solidify and become rounded during flight. The final shape is determined by the initial size, viscosity, and flight velocity of the magma .
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[c mediumvioletred] (as used in expressions)
atomic bomb
hydrogen bomb
thermonuclear bomb
H bomb
neutron bomb
smart bomb
{{link=buzz bomb">buzz bomb
flying bomb