- to form or move in waves : fluctuate.
- to rise and fall in volume, pitch, or cadence.
- to present a wavy appearance.
What do you mean by undulation?
1a : a rising and falling in waves. b : 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.
How do you use undulation in a sentence?
(1) The road followed the undulations of the landscape. (2) The downs fell in gentle undulations to the sea. (3) Silence brooded over the long undulations of the national park. (4) The pickup's stylus must faithfully track undulations which are smaller than the wavelength of light.
