“The crest of the undulation on the inside of the wall coincides with the trough of the Gaussian vault.”

“While burrowing, caecilians employ concertina locomotion, lateral undulation, and vermiform locomotion.”

“Many whales are alive today, and they swim by dorsoventral undulation of their tail flukes.”

“Still, the performances were admirable for their lilting rhythmic undulance and sensitivity.”

“While Ms. Scott and Ms. Toogood add undulance to the movement palette, Mr. Riener reappears through one of the panels.”

“There is a thrilling realism to the undulance of the sea: each movement a player makes in its midnight-blue canyons unleashes a web of fluming consequences.”

“But the trail is a continuous series of undulations, and the tread way itself is very rocky and rooty, with short, steep climbs.”

“The suspension was able to soak up major road undulations over rough terrain.”

“Via this unbounded body, we encounter flows and vibrations and pulsations and undulations and strange sounds and indeterminable sights.”