~ 1 [ mat ]
■ noun an impure product of the smelting of sulphide ores, especially those of copper or nickel.
Origin
C19: from Fr. (in OFr. meaning 'curds'), feminine of mat 'matt'.
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~ 2 [ mat ]
■ noun a mask used to obscure part of an image in a film and allow another image to be substituted.
Origin
C19: from Fr.
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~ 3
■ adjective , noun , & verb variant spelling of matt .