derailment

American  

[dee-reyl-muhnt] / diˈreɪl mənt /

noun

1. the act or process of derailing.

2. Psychiatry. loosening of associations.

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Etymology

Origin of derailment

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

Example Sentences

Rail journeys on Southern, Thameslink and the Gatwick Express remain severely disrupted following an early morning derailment and a signal failure in south-east London.

From BBC

Stripping out certain one-time items, such as expenses related to its tie-up with Union Pacific and continued costs from its freight-train derailment in Ohio, earnings were $3.22 a share.

From The Wall Street Journal

A fatal accident inquiry into a train derailment which killed three men in the north east of Scotland is due to begin.

From BBC

The working theory for investigators is that a crack in one of the rails might have caused a derailment.

From Barron's

As officials called for patience, news broke of a second derailment in almost as many days.

From BBC