The Collaborative International Dictionary of English v.0.48:

Balsamation \Bal`sam*a"tion\ (b[add]l`sam*[=a]"sh[u^]n or
   b[a^]l`sam*[=a]"sh[u^]n), n.
   1. The act of imparting balsamic properties.
      [1913 Webster]

   2. The art or process of embalming.
      [1913 Webster] Balsamic