- a wave.
- the motion of waves.
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Words nearby undulation
Example sentences from the Web for undulation
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.
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