derail

  1. Noun.  A device placed on railway tracks causing a train to derail.
  2. Verb.  (transitive) To cause to come off the tracks.
  3. Verb.  (intransitive) To come off the tracks.
  4. Verb.  (intransitive) To deviate from the previous course or direction.
  5. Verb.  (transitive) To cause to deviate from a set course or direction.

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This entry was last updated on RefTopia from its source on 3/20/2012.