[verb uhn-juh-leyt, uhn-dyuh-, -duh-; adjective uhn-juh-lit, -leyt, uhn-dyuh-, -duh-]
verb (used without object), un·du·lat·ed, un·du·lat·ing.
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.
verb (used with object), un·du·lat·ed, un·du·lat·ing.
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
1650–60;Related formsun·du·la·tor, nounnon·un·du·late, adjectivenon·un·du·lat·ing, adjective
< Latin undulātus
waved, equivalent to und(a
) wave + -ul(a
+ -ātus -ate1
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for undulatewobble
Examples from the Web for undulate
Historical Examples of undulate
Don't they look brave As they undulate—(undulate, mind you,From unda, a wave).
In the meadows I see her undulate—the black miner, the mole, continues her labours.
Mrs. Hearty collapsed into a chair and began to undulate with mirth.
The two lower lobes are very small; the lobes are undulate or entire.
I vow if her neck had been bare one could have seen it undulate beneath the skin.
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
adjective (ˈʌndjʊlɪt, -ˌleɪt) undulated
Derived Formsundulator, noun
having a wavy or rippled appearance, margin, or forman undulate leaf
Word Origin for undulate
C17: from Latin undulātus, from unda a wave
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
Word Origin and History for undulate
1660s, from undulation. Related: undulated, undulating.
Online Etymology Dictionary, © 2010 Douglas Harper