undulation

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undulation

Rhymes with -eɪʃən

Where it comes from

From undulate + -ion, or borrowed from Medieval Latin undulātiō; compare French ondulation.

noun undulations

  1. countable, uncountable An instance or act of undulating. But the next undulation would raise us, showing the island ablaze in the sunlight, an emerald of dazzling beauty resting lightly on the bosom of the sea.
  2. countable, uncountable A wavy appearance or outline; waviness.
  3. countable, uncountable A tremulous tone produced by a peculiar pressure of the finger on a string.
  4. countable, uncountable A wavelike curve; a smooth and regular rise and fall.
  5. countable, uncountable A wavelike motion of the air; electromagnetic radiation.
  6. countable, dated, uncountable A feeling as if of an undulatory motion about the heart.
  7. countable, dated, uncountable The distinctive motion of the matter within an abscess on being pressed when it is ripe for opening.

Translations

Every language

noun instance or act

Españolondulación, undulación
Românăondulație

noun appearance or outline

Españolondulación
Русскийволнистость volnistostʹ

noun a wavelike curve; a smooth and regular rise and fall

Españolondulación
Русскийволнистость volnistostʹ, неро́вность f поверхности neróvnostʹ

noun wavelike motion

Españolondulación

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MLA

"undulation." Wiktionary, via Micwyn, micwyn.com/word/undulation. Accessed 6 Nov. 2026.

APA

undulation. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/undulation

Chicago

"undulation." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/undulation.

BibTeX
@misc{undulation_2026,
  title = {undulation},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/undulation},
  urldate = {2026-11-06}
}