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Synonyms

undulation

American  
[uhn-juh-ley-shuhn, uhn-dyuh-, -duh-] / ˌʌn dʒəˈleɪ ʃən, ˌʌn dyə-, -də- /

noun

  1. an act of undulating; a wavelike motion.

  2. a wavy form or outline.

  3. one of a series of wavelike bends, curves, or elevations.

  4. Physics.

    1. a wave.

    2. the motion of waves.

undulation British  
/ ˌʌndjʊˈleɪʃən /

noun

  1. the act or an instance of undulating

  2. any wave or wavelike form, line, etc

"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

Etymology

Origin of undulation

First recorded in 1640–50; undul(ate) + -ation

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.