The undulations of the conductor's hands kept the band in unison.
The bridge undulated as the earthquake rocked the city.
The washer stopped working and wouldn't undulate during the wash cycle...
The word is undulate. It means rise and fall.
The noun forms for the verb to undulate are undulation and the gerund, undulating.
The word for a swelling motion is "undulate."
the word you are looking for is UNDULATE.
Waves undulate.
Undulate is a verb: undulate, undulates, undulated, undulating
One can find many synonyms for the word undulate online. Thesaurus online is a good place to find synonyms as is The Free Dictionary and Synonyms-For.
Undulate ray was created in 1802.
use understand utilize
undulate