Source : Webster's Revised Unabridged Dictionary (1913)

Silver \Sil"ver\, a.
   1. Of or pertaining to silver; made of silver; as, silver
      leaf; a silver cup.

   2. Resembling silver. Specifically:
      (a) Bright; resplendent; white. ``Silver hair.'' --Shak.

                Others, on silver lakes and rivers, bathed Their
                downy breast.                     --Milton.
      (b) Precious; costly.
      (c) Giving a clear, ringing sound soft and clear. ``Silver
          voices.'' --Spenser.
      (d) Sweet; gentle; peaceful. ``Silver slumber.''
          --Spenser.

   {American silver fir} (Bot.), the balsam fir. See under
      {Balsam}.

   {Silver age} (Roman Lit.), the latter part (a. d. 14-180) of
      the classical period of Latinity, -- the time of writers
      of inferior purity of language, as compared with those of
      the previous golden age, so-called.

   {Silver-bell tree} (Bot.), an American shrub or small tree
      ({Halesia tetraptera}) with white bell-shaped flowers in
      clusters or racemes; the snowdrop tree.

   {Silver bush} (Bot.), a shrubby leguminous plant ({Anthyllis
      Barba-Jovis}) of Southern Europe, having silvery foliage.
      

   {Silver chub} (Zo["o]l.), the fallfish.

   {Silver eel}. (Zo["o]l.)
      (a) The cutlass fish.
      (b) A pale variety of the common eel.

   {Silver fir} (Bot.), a coniferous tree ({Abies pectinata})
      found in mountainous districts in the middle and south of
      Europe, where it often grows to the height of 100 or 150
      feet. It yields Burgundy pitch and Strasburg turpentine.
      

   {Silver foil}, foil made of silver.

   {Silver fox} (Zo["o]l.), a variety of the common fox ({Vulpes
      vulpes}, variety {argenteus}) found in the northern parts
      of Asia, Europe, and America. Its fur is nearly black,
      with silvery tips, and is highly valued. Called also
      {black fox}, and {silver-gray fox}.

   {Silver gar}. (Zo["o]l.) See {Billfish}
      (a) .

   {Silver grain} (Bot.), the lines or narrow plates of cellular
      tissue which pass from the pith to the bark of an
      exogenous stem; the medullary rays. In the wood of the oak
      they are much larger than in that of the beech, maple,
      pine, cherry, etc.

   {Silver grebe} (Zo["o]l.), the red-throated diver. See
      Illust. under {Diver}.

   {Silver hake} (Zo["o]l.), the American whiting.

   {Silver leaf}, leaves or sheets made of silver beaten very
      thin.

   {Silver lunge} (Zo["o]l.), the namaycush.

   {Silver moonfish}.(Zo["o]l.) See {Moonfish}
      (b) .

   {Silver moth} (Zo["o]l.), a lepisma.

   {Silver owl} (Zo["o]l.), the barn owl.

   {Silver perch} (Zo["o]l.), the mademoiselle, 2.

   {Silver pheasant} (Zo["o]l.), any one of several species of
      beautiful crested and long-tailed Asiatic pheasants, of
      the genus {Euplocamus}. They have the tail and more or
      less of the upper parts silvery white. The most common
      species ({E. nychtemerus}) is native of China.

   {Silver plate}, domestic utensils made of silver.

Source : WordNet®

silver fox
     n : red fox in the color phase when its pelt is tipped with
         white