rupture
noun
the act of breaking or bursting.
Used to describe an action that was ongoing continuously in the past up until another past event interrupted it.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The original pipe, made by JM Eagle, had been rupturing several times a year, baffling state officials and costing tens of thousands of dollars a year to repair.
From New York Times ● Feb. 12, 2010