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bomb |
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bombIn 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. bombSee logic bomb and abend. bomb 1. the bomb a. a hydrogen or atomic bomb considered as the ultimate destructive weapon b. Slang something excellent 2. a round or pear-shaped mass of volcanic rock, solidified from molten lava that has been thrown into the air 3. Med a container for radioactive material, applied therapeutically to any part of the body 4. American football a very long high pass
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Tephra ranges in size from volcanic ash (the smallest particles) to cinders (rock fragments) to larger rocks called volcanic bombs. A rock -- a volcanic bomb -- actually went by the legs of the guy who was hanging on the rope down in the crater. |
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