The Collaborative International Dictionary of English v.0.48:

Cassation \Cas*sa"tion\, n. [F. cassation. See Cass.]
   The act of annulling.
   [1913 Webster]

         A general cassation of their constitutions. --Motley.
   [1913 Webster]

   Court of cassation, the highest court of appeal in France,
      which has power to quash (Casser) or reverse the decisions
      of the inferior courts.
      [1913 Webster]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

CASSATION, French law. A decision which emanates from the sovereign
authority, and by which a sentence or judgment in the last resort is
annulled., Merl. Rep. h.t. This jurisdiction is now given to the Cour de
Cassation.
     2. This court is composed of fifty-two judges, including four
presidents, an attorney-general, and six substitutes, bearing the title of
advocates general; a chief clerk, four subordinate clerks, and eight
huissiers. Its jurisdiction extends to the examination and superintendence
of the judgments and decrees of the inferior court, both in civil and
criminal cases. It is divided into three sections, namely, the section des
requetes, the section civile, and the section criminelle. Merl. Rep. mots
Cour de Cassation.