pendulum

IPA: pˈɛndʒʌɫʌm

(clocks, mechanics) A body suspended from a fixed support so that it swings freely back and forth under the influence of gravity, commonly used to regulate various devices such as clocks.
(by extension) The tendency of a situation to oscillate (between two extremes).
A lamp, etc. suspended from a ceiling.
A watch's guard-ring by which it is attached to a chain.

Examples of "pendulum" in Sentences

The pendulum is already starting to swing the other direction.
The pendulum is rapidly swinging back to the old condition of things.
Every time I think the pendulum is at its apex, it keeps on moving to the right anyway.
NCIS was perturbed at the end of last season, and the pendulum is slowly returning to status quo.
Now the pendulum is swinging more gently, so that there is rest within action and action within rest.
That's why the pendulum is always swinging, but it's particularly acute, I think, in times and in places that have high stress of citizens.
That late Michael Halliday goal at the Oval on Good Friday has swung the title pendulum back in favour of the east-Belfast side - but only just.
"The pendulum is going to swing back from shows starring White House crashers, New Jersey alcoholics, and people dressing up like a banana to make a deal," she says.
Professor Christopher B. Leimberger states in the "Atlantic" that "signs of physical and social deterioration are spreading" in the suburbs and the "pendulum is swinging back toward urban living."
Tolliver's counterexample, which he calls the pendulum case, goes like this: suppose a physics student has learned that from the period of a pendulum (i.e., the time it takes to complete a swing) one can calculate its length and vice versa.