#1
undulate v. [
ripple, ruffle, riffle, cockle] stir up (water) so as to form ripples
. wn #2
undulate s. having a wavy margin and rippled surface
. wn #3
undulate v. [
roll] occur in soft rounded shapes; "The hills rolled past"
. wn #4
undulate v. [
roll, flap, wave] move in a wavy pattern or with a rising and falling motion; "The curtains undulated"; "the waves rolled towards the beach"
. wn #5
undulate v. increase and decrease in volume or pitch, as if in waves; "The singer's voice undulated"
. wn