The Collaborative International Dictionary of English v.0.48:

Pertusion \Per*tu"sion\, n. [L. pertusio.]
   The act of punching or piercing with a pointed instrument;
   as, pertusion of a vein. [R.] --Arbuthnot.
   [1913 Webster]

   2. A punched hole; a perforation. --Bacon.
      [1913 Webster]