undulate 1verbdomain: v movementPrinceton WordNet [ver.3.1]EnglishDefinitionstir up (water) so as to form ripplesReport errorPath to highest hypernymMorphologySynset graphSynonymsripple 1stir up (water) so as to form ripplesruffle 1stir up (water) so as to form ripplesriffle 3stir up (water) so as to form ripplescockle 1stir up (water) so as to form ripples