单词	undulation
释义	undulation noun un·​du·​la·​tion ˌən-jə-ˈlā-shən  ˌən-dyə-, ˌən-də- 1 a : a rising and falling in waves b : 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 Example Sentences Recent Examples on the Web For a universal understanding of how your brand wishes to establish its story, build guidelines to stabilize the undulation of perceptions with a clear—and, most importantly, consistent—brand identity. Goran Paun, Forbes, 4 Aug. 2022 Kickapoo was marked by a slight undulation in the topography. Alli Harvey, Anchorage Daily News, 10 July 2022 The greens are going to be running lightning quick and have a lot of undulation and wave to them. Taylor Wilson, USA TODAY, 16 June 2022 Braces hold together the grin of a young girl on a saddle, her dress a mint-green undulation. The New Yorker, 13 May 2022 And many greens are crowned or at least have amazing undulation, and run true. Scott Kramer, Forbes, 8 May 2022 The Normal setting is an absolute must for routine driving around town, because not only does the car tend to copy every undulation the paving machine laid down, modest cracks and step-down joints can feel like miniature cliffs. Dan Edmunds, Car and Driver, 22 Mar. 2022 Even with the dampers in their firmest setting, the Flying B displays its softer side as its 5050 pounds list over the undulation at more than 150 mph. David Beard, Car and Driver, 7 Feb. 2022 The sine wave is a smooth, periodic undulation, a mathematical idealization of waves found in nature: energetic seismic waves produced by earthquakes; sonic booms propagating through air; tsunamis spreading across water. New York Times, 14 Sep. 2021 See More Word History First Known Use 1646, in the meaning defined at sense 1a
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