Definition of cassation in English:
 cassation
noun kəˈseɪʃ(ə)nkəˈseɪʃ(ə)n
Music An informal instrumental composition of the 18th century, similar to a divertimento and often performed outdoors.
 Example sentencesExamples
-  A cassation is akin to a divertimento; Mozart composed a few early in his career, but it is a relatively unusual genre.
 
Origin
  
Late 19th century: from German Kassation 'serenade', from Italian cassazione.
   Definition of cassation in US English:
 cassation
nounkəˈsāSH(ə)nkəˈseɪʃ(ə)n
Music An informal instrumental composition of the 18th century, similar to a divertimento and originally often for outdoor performance.
 Example sentencesExamples
-  A cassation is akin to a divertimento; Mozart composed a few early in his career, but it is a relatively unusual genre.
 
Origin
  
Late 19th century: from German Kassation ‘serenade’, from Italian cassazione.