Definition of undulation
1a : a rising and falling in wavesb : a wavelike motion to and fro in a fluid or elastic medium propagated continuously among its particles but with little or no permanent translation of the particles in the direction of the propagation : vibration
2 : the pulsation caused by the vibrating together of two tones not quite in unison
3 : a wavy appearance, outline, or form : waviness
Recent Examples of undulation from the Web
Rahm will need all that skill this week at Erin Hills in Wisconsin -- a 7,741-yard, par 72, monster of a course full of links-like undulations, perilous sand traps and punishingly deep rough.
The hole slopes pretty severely from right to left and boasts waves of undulations between within the fairway itself.
Five hours may be considered a lightning round as 156 golfers traverse around 7,700 yards of undulations and unpredictability.
No kipukas out here: just mile upon mile of the black undulations formerly known as magma.
And the laser images, with their precise modeling of any undulations in a roof’s surface, can identify weak spots that wouldn’t be obvious using standard aerial photography.
The curve of the horizon is caused by undulations in the flat Earth.
The quotations gathered from scores of different voices begin to cohere into a hypnotic conversation that moves with the mysterious undulations of a flock of birds.
A painting of the port in Marly, flooded after the Seine burst its banks, unifies sky, water and a cafe into an allover undulation of pigment.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'undulation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of undulation
Seen and Heard
What made you want to look up undulation? Please tell us where you read or heard it (including the quote, if possible).