Webster's English Dictionary

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ermine

er.mine \'*r-m*n\ n or ermines;  or ermine [ME, fr. OF, of Gmc origin] pl  
   pl  1a: any of several weasels that assume white winter pelage usu. with 
   more o r less black on the tail; esp : a large European weasel (Mustela 
   ermines) 1b: the white fur of the ermine in winter pelage  2: a rank or 
   office whose ceremonial or official robe is ornamented with er mine