The American spelling of the process of removing or neutralizing unwanted odors from something.
From deodorize (American spelling) + -ation (Latin suffix '-atio' indicating a process or state). Established in American English following Webster's spelling reforms that favored -ize endings in the 19th century.
The existence of both 'deodorization' and 'deodorisation' is a direct result of the American Revolution—after independence, American spelling intentionally diverged from British conventions as an act of cultural nationalism.
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