pendulum

noun

pen·​du·​lum ˈpen-jə-ləm How to pronounce pendulum (audio)
ˈpen-dyə-,
-də-
1
: a body suspended from a fixed point so as to swing freely to and fro under the action of gravity and commonly used to regulate movements (as of clockwork)
2
: something (such as a state of affairs) that alternates between opposites
doesn't take much to swing the pendulum of opinion the other way

Examples of pendulum in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
So there’s a lot of us that are hoping for the pendulum to swing the other way. Brian Davids, The Hollywood Reporter, 24 Jan. 2025 Sanders was in the pole position a month ago (-140), but the pendulum has now swung in Ward’s direction. Mark Ross, The Athletic, 22 Jan. 2025 Like theirs, our era is not so much like a pendulum swinging in long arcs but a seesaw tipping back and forth. Chris Stirewalt, The Hill, 21 Jan. 2025 The pendulum swung the other way against Texas in the semifinal, when the Longhorns found a way to shut down Smith through double coverage, limiting him to just one catch for three yards. Andrew Greif, NBC News, 21 Jan. 2025 See all Example Sentences for pendulum 

Word History

Etymology

New Latin, from Latin, neuter of pendulus

First Known Use

1660, in the meaning defined at sense 1

Time Traveler
The first known use of pendulum was in 1660

Dictionary Entries Near pendulum

Cite this Entry

“Pendulum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pendulum. Accessed 6 Feb. 2025.

Kids Definition

pendulum

noun
pen·​du·​lum ˈpen-jə-ləm How to pronounce pendulum (audio)
: a body hung from a fixed point so as to swing freely back and forth under the action of gravity
Etymology

from scientific Latin pendulum "something suspended so as to swing freely," from Latin pendulus "suspended," from pendēre "to hang" — related to depend, perpendicular

More from Merriam-Webster on pendulum

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!