stiffen
verb (used with object)
to make stiff.
have been stiffening
-
present perfect progressiveof stiffen.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 a matter of fact, bears are not much good at negotiating high jumps, particularly when their joints have been stiffening during the greater part of the winter.
From The Rising of the Red Man A Romance of the Louis Riel Rebellion by John Mackie
