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1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Viscous \Vis"cous\, a. [L. viscosus. See Viscid.]
      Adhesive or sticky, and having a ropy or glutinous
      consistency; viscid; glutinous; clammy; tenacious; as, a
      viscous juice. -- Vis"cous*ness, n.
      [1913 Webster]
      Note: There is no well-defined distinction in meaning between
            viscous and viscid.
            [1913 Webster]