wedge-shaped characters

from The Collaborative International Dictionary of English v.0.48

Wedge-formed \Wedge"-formed`\, a.
   Having the form of a wedge; cuneiform.
   [1913 Webster]

   {Wedge-formed characters}, {Wedge-shaped characters}. See
      {Arrow-headed characters}, under {Arrowheaded}, and cf.
      {cuneiform}.
      [1913 Webster +PJC] wedge gauge