undulate

Wavy in appearance or form.

Adjective

  1. Wavy in appearance or form.
  2. Changing the pitch and volume of one's voice.
  3. sinuous, winding up and down.

Origin

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

Forms

more undulate most undulate

Verb

  1. To cause to move in a wavelike motion.
    • Breath vocalized, i.e., vibrated and undulated. - 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...
  2. To cause to resemble a wave.
  3. 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. - 1865, Walt Whitman, “When Lilacs Last in the...
  4. To appear wavelike.

Origin

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”).

Forms

undulates undulating undulated

Related

oscillate