undulate - definition and synonyms

verb [intransitive] mainly literary 

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/ˈʌndjʊleɪt/
present tense
I/you/we/theyundulate
he/she/itundulates
present participleundulating
past tenseundulated
past participleundulated
  1. to move gently up and down in the shape of waves on the sea

derived word

undulating

 

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adjective