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is undulating
  • present progressive of undulate (3rd person singular).

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Hummocky terrain is undulating and uneven topography that results from the ground being disturbed.

From Textbooks • Jan. 1, 2017

“We can control how fast it is undulating and how fast it is swimming.”

From The Wall Street Journal • Jul. 7, 2016

Each slab is undulating and unique – the First Amendment resembles the tip of a key; the Second Amendment, a pregnant woman’s profile.

From New York Times • Dec. 11, 2012

Most of Orkney is undulating green fields and the main industry is beef farming, along with crab fishing and making cheese.

From BusinessWeek • Jul. 5, 2011

At Coolgardie the country is undulating; and in the distance Mount Burgess makes a bold and striking feature in the landscape, isolated from the neighbouring low hills.

From The Romance of Industry and Invention by Cochrane, Robert