adj.
1.having a sinuate margin and rippled surface undulate v.
1.stir up (water) so as to form ripples
2.occur in soft rounded shapes
3.move in a wavy pattern or with a rising and falling motion
4.increase and decrease in volume or pitch, as if in waves
Idiom of the Day
a matter of life and death
an issue of great urgency
It was a matter of life and death to rescue the young boy from the water quickly.