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v.
make less offensive or more acceptable by removing objectionable features; "sanitize a document before releasing it to the press"; "sanitize history"; "sanitize the language in a book"
adj.
(of sound or color) free from anything that dulls or dims; "efforts to obtain a clean bass in orchestral recordings"; "clear laughter like a waterfall"; "clear reds and blues"; "a light lilting voice like a silver bell"