Definition of spallation in English:

spallation

Syllabification: spall·a·tion
Pronunciation: /spôˈlāSHən
 
/

noun

1 Physics The breakup of a bombarded nucleus into several parts.
2 Geology Separation of fragments from the surface of a rock, especially by interaction with a compression wave.

Definition of spallation in:

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Word of the day guzzle
Pronunciation: ˈgəzəl
verb
eat or drink (something) greedily