undulate

adj : having a sinuate margin and rippled surface

v 1: stir up (water) so as to form ripples [syn: {ripple}, {ruffle},

{riffle}, {cockle}]

2: occur in soft rounded shapes; "The hills rolled past" [syn:

{roll}]

3: move in a wavy pattern, as of curtains [syn: {flap}, {wave}]