concertina
noun
a musical instrument resembling an accordion but having buttonlike keys, hexagonal bellows and ends, and a more limited range.
Used to describe actions that started in the past and continue into or have direct relevance to the present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
One house has concertinaed to the ground, as if hit by an earthquake.
From BBC ● Nov. 12, 2012