The Collaborative International Dictionary of English v.0.48:
Brazen \Bra"zen\, a.[OE. brasen, AS. br[ae]sen. See Brass.]
1. Pertaining to, made of, or resembling, brass.
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2. Sounding harsh and loud, like resounding brass.
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3. Impudent; immodest; shameless; having a front like brass;
as, a brazen countenance.
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Brazen age.
(a) (Myth.) The age of war and lawlessness which succeeded
the silver age.
(b) (Arch[ae]ol.) See under Bronze.
Brazen sea (Jewish Antiq.), a large laver of brass, placed
in Solomon's temple for the use of the priests.
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