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.
- un·du·la·tor, noun
- non·un·du·late, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use undulate in a sentence
He’s in the Montana prairie in a place called Centennial Valley, which is undulating sagebrush flats layered with ancient sand dunes bordered on one side by the Centennial Mountains.Can a hunter outrun an antelope? This ultra-marathoner is finding out. | By Christine Peterson/Outdoor Life | November 23, 2020 | Popular-Science
In this computer model, snakes that undulated flew similarly to the real-life snakes.
Certain species of tree snakes can glide through the air, undulating their bodies as they soar from tree to tree.
In the simulation, snakes that undulated flew similarly to the real-life snakes.
Gliding snakes undulate their bodies both side to side and up and down, the researchers found, and move their tails above and below the level of their heads.
"Built it this spring," he said, surveying his handiwork, which seemed to undulate as the cars swept past.In Search of the Unknown | Robert W. Chambers
But around and on every side of the retina undulate countless other rays that leave no impression upon it.Mysterious Psychic Forces | Camille Flammarion
A bold but popular authoress was severely rated lately for the passage, “made twilight undulate.”Jasper Lyle | Harriet Ward
Scarcely had the crier ceased to speak, when the crowd began to undulate like a serpent behind the line of soldiers.The Forty-Five Guardsmen | Alexandre Dumas
A violent east wind causes the tall heather, now of the color of dead leaves, to undulate like a peaceful sheet of water.The Carlovingian Coins | Eugne Sue
British Dictionary definitions for undulate
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 form: an undulate leaf
- undulator, noun
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