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Meaning of cassation

cas•sa•tion

Pronunciation: (ka-sā'shun, ku-), [key]
— n.
  1. annulment; cancellation; reversal.
  2. an 18th-century instrumental suite for outdoor performance, similar to the divertimento and the serenade.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.