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
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Recent Examples of undulation from the Web
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More interesting, though, are the blue bits: areas of low pressure that those undulations create.
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
1646
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See words that rhyme with undulation Spanish Central: Translation of undulation Nglish: Translation of undulation for Spanish speakers
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