Definition of "bluing"
verb:
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Present participle of blue.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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noun:
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A substance used in laundry to whiten clothes; blue.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
Any of several processes to protect steel against rust.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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