[verb uhn-juh-leyt, uhn-dyuh-, -duh-; adjective uhn-juh-lit, -leyt, uhn-dyuh-, -duh-]
- to move with a sinuous or wavelike motion; display a smooth rising-and-falling or side-to-side alternation of movement: The flag undulates in the breeze.
- to have a wavy form or surface; bend with successive curves in alternate directions.
- (of a sound) to rise and fall in pitch: the wail of a siren undulating in the distance.
- to cause to move in waves.
- to give a wavy form to.
- Also un·du·lat·ed. having a wavelike or rippled form, surface, edge, etc.; wavy.
Origin of undulate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for undulating
There were stomachs, taut and flat, but also undulating bellies, soft and bloated from the breakfast buffet.Powerful Congressman Writes About ‘Fleshy Breasts’
January 7, 2015
Suddenly, the earth convulses, transforming the level tracks into an undulating rollercoaster.Hayao Miyazaki’s ‘The Wind Rises’: An Anime Icon Bows Out
November 15, 2013
On the other side were undulating pasture-lands on which grazed a few sheep.The Yates Pride
Mary E. Wilkins Freeman
Suddenly the whole face of it was adorned with a verdant, undulating robe.Imogen
The sun was shining violently upon the undulating surface of the land.Tales of Unrest
Lobate -us: divided by deep, undulating and successive incisions.Explanation of Terms Used in Entomology
John. B. Smith
Like them, it is level or undulating, dry, and bare—in the main a land of pasture.Impressions of South Africa
- to move or cause to move in waves or as if in waves
- to have or provide with a wavy form or appearance
- having a wavy or rippled appearance, margin, or forman undulate leaf
C17: from Latin undulātus, from unda a wave
Word Origin and History for undulating
1660s, from undulation. Related: undulated, undulating.
Online Etymology Dictionary, © 2010 Douglas Harper