Undulate Definition

ŭnjə-lāt, ŭndyə-, -də-
undulated, undulates, undulating
undulated, undulates, undulating
To move in or as in waves; move sinuously.
Webster's New World
To have a wavy form, margin, or surface.
Webster's New World
To cause to move in waves.
Webster's New World
To increase and decrease in volume or pitch.
American Heritage
To give a wavy form, margin, or surface to.
Webster's New World
Having a wavy form, margin, or surface; undulating.
Webster's New World

Changing the pitch and volume of one's voice.


(botany, of a margin) Winding up and down gradually relative to the blade.


Origin of Undulate

  • From Late Latin undula small wave diminutive of Latin unda wave wed-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Late Latin undulātus (“undulated"), from *undula (“small wave"), diminutive of Latin unda (“wave").

    From Wiktionary

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