mor·dant /ˈmɔrdṇt/
 (a.)尖酸的,辛辣的,有腐蝕性的金屬腐蝕劑,金箔粘著劑(vt.)用媒染劑處理


 mor·dant /ˈmɔrdṇt/ 名詞
 媒染劑,飾染劑


 Mor·dant a.
 1. Biting; caustic; sarcastic; keen; severe.
 2. Dyeing & Calico Printing Serving to fix colors.


 Mor·dant, n.
 1. Any corroding substance used in etching.
 2. Dyeing & Calico Printing Any substance, as alum or copperas, which, having a twofold attraction for organic fibers and coloring matter, serves as a bond of union, and thus gives fixity to, or bites in, the dyes.
 3. Gilding Any sticky matter by which the gold leaf is made to adhere.


 Mor·dant v. t. [imp. & p. p. Mordanted; p. pr. & vb. n. Mordanting.] To subject to the action of, or imbue with, a mordant; as, to mordant goods for dyeing.

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 mordant
      adj : harshly ironic or sinister; "black humor"; "a grim joke";
            "grim laughter"; "fun ranging from slapstick clowning
            ... to savage mordant wit" [syn: black, grim]
      n : a substance used to treat leather or other materials before
          dyeing; aids in dyeing process