|1.||[ verb ] stir up (water) so as to form ripples|
|Synonyms:||ripple ruffle cockle riffle|
|Related terms:||flow ripple fold|
|2.||[ adjective ] (botany) having a sinuate margin and rippled surface|
|3.||[ verb ] occur in soft rounded shapes|
"The hills rolled past"
|4.||[ verb ] increase and decrease in volume or pitch, as if in waves|
"The singer's voice undulated"
|5.||[ verb ] move in a wavy pattern or with a rising and falling motion|
|Synonyms:||wave flap roll|
"The curtains undulated" "the waves rolled towards the beach"
|Related terms:||move luff wave wave roller undulation|