pulverization vs American spelling

pulverization and American spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
pulverization	Yes	No	No	No
American spelling	Yes	No	No	No

pulverization (noun)	American spelling (noun)
the act of grinding to a powder or dust	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')
annihilation by pulverizing something
a solid substance in the form of tiny loose particles; a solid that has been pulverized