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''undulate'' ▫ᴱᴺ

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''undulate'' ▫ᴱᴺ｜Definition｜1st｜20260215184259-00-⌔

undulate - Wiktionary, the free dictionary

English

Verb

undulate (third-person singular simple present undulates, present participle undulating, simple past and past participle undulated)

  • (transitive) To cause to move in a wavelike motion.
    • ✤ Breath vocalized, i.e., vibrated and undulated.1
  • (transitive) To cause to resemble a wave.
  • (intransitive) To move in wavelike motions.
    • ✤ His tongue undulated.
    • ✤ Come lovely and soothing death,/Undulate round the world, serenely arriving, arriving,/In the day, in the night, to all, to each,/Sooner or later delicate death.2
  • (intransitive) To appear wavelike.

Adjective

🖼️ ➺

undulate (comparative more undulate, superlative most undulate)

  • Wavy in appearance or form.
  • Changing the pitch and volume of one’s voice.
  • (botany, of a margin) sinuous, winding up and down.

Etymology 1

First attested in 1664; borrowed from New Latin undulātus, the perfect passive participle of undulō (see -ate (verb-forming suffix)), from an unattested ﹡ undula (“small wave”), diminutive of Latin unda (“wave”).

Pronunciation

  • IPA: /ˈʌndjəleɪt/, /ˈʌndjʊleɪt/, /ˈʌnd͡ʒəleɪt/, /ˈʌnd͡ʒʊleɪt/, /ˈʌndəleɪt/
  • Audio (Southern England): 🔊

Etymology 2

Borrowed from Late Latin undulātus (“undulated”), see -ate (adjective-forming suffix).

Pronunciation

  • (non-merged vowel) IPA: /ˈʌndjəlɪt/, /ˈʌndjʊlɪt/, /ˈʌnd͡ʒəlɪt/, /ˈʌnd͡ʒʊlɪt/, /ˈʌndəlɪt/
  • (merged vowel) IPA: /ˈʌndjələt/, /ˈʌnd͡ʒələt/, /ˈʌndələt/
  • Audio (Southern England); /ˈʌnd͡ʒələt/: 🔊

Printed 2026-06-28.

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Footnotes

  1. 1669, William Holder, Elements of Speech: An Essay of Inquiry into the Natural Production of Letters: […], London: […] T. N[ewcomb] for J[ohn] Martyn printer to the R[oyal] Society, […], →OCLC: ↩

  2. 1865, Walt Whitman, “When Lilacs Last in the Dooryard Bloom’d”, in Sequel to Drum-Taps: When Lilacs Last in the Dooryard Bloom’d and other poems: ↩

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