spiral
noun
a plane curve generated by a point moving around a fixed point while constantly receding from or approaching it.
have been spiralling
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present perfect progressiveof spiral.present perfect progressive
Used to describe an action that began in the past, has continued continuously, and is still in progress.
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.
As you note, costs per day of hospitalization have been spiralling upwards.
From Forbes ● Sep. 21, 2011
