an act of undulating; a wavelike motion.
a wavy form or outline.
one of a series of wavelike bends, curves, or elevations.
the motion of waves.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use undulation in a sentence
After driving beneath a canopy of yellow poplar and eastern hemlock, swerving my van between the endless undulations of the Appalachian Mountains for hours, I pulled into my campsite at Cades Cove and set off walking.Yes, You Can Avoid the Crowds at (the Very Popular) Great Smoky Mountain National Park | tzemke | August 2, 2022 | Outside Online
In the same way that I am intimately familiar with the various distance markers and undulations of my go-to routes, I’m always subconsciously aware of how far I am from the nearest bathroom.Who Pooped on the Track in Sedona? The Running World Needs to Know. | mmirhashem | February 25, 2022 | Outside Online
These collective undulations stirred up flows that prevented the water drop’s edge from contracting as it evaporated.
This aurora is caused by undulations in Earth’s magnetic field called chorus waves.
Those areas hit home for CEOs at conglomerate Honeywell, hotel chain Marriott International, and retail credit card titan Synchrony—all of which have felt the undulations of a rocky business environment this year.‘You can’t feel sorry for yourself’—How companies from Honeywell to Marriott are adapting to life with coronavirus | Anne Sraders | October 26, 2020 | Fortune
In this case the undulation strikes but a moderate blow; the wave is not greatly broken.Outlines of the Earth's History | Nathaniel Southgate Shaler
From the camp of the previous evening it had evidently been hidden from view by an undulation in the surface.The Home of the Blizzard | Douglas Mawson
Herein lies the idea of the barcarolle, the ebb and flow, the undulation of each measure.Piano Mastery | Harriette Brower
Thirty-six hours were occupied in the journey of the great undulation from Krakatoa to its antipodes.Time and Tide | Robert S. (Robert Stawell) Ball
There was no appearance of undulation; when the lumps sank, other lumps did not rise in the intervals between them.Mythical Monsters | Charles Gould
British Dictionary definitions for undulation
the act or an instance of undulating
any wave or wavelike form, line, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012