Dictionary.com
Thesaurus.com

derailment

American  
[dee-reyl-muhnt] / diˈreɪl mənt /

noun

  1. the act or process of derailing.

  2. Psychiatry. loosening of associations.


Etymology

Origin of derailment

1940–45; derail + -ment, or < French déraillement

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

An independent investigation into the cause of a train derailment will look into a raft of potential issues.

From BBC

Network Rail, which looks after the track, said the precise cause of the 11-carriage derailment was still being investigated.

From BBC

The derailment has also hit TransPennine Express services which use the West Coast Mainline.

From BBC

In the wake of the Gloria's derailment Lisbon's other funiculars have remained closed while investigators assess their safety.

From Barron's

The brakeman tried to apply emergency brakes but failed to prevent the derailment, The cause of the crash remains unknown.

From BBC