ulu·late \-əˌlāt, usu -ād.+V\intransitive verb (-ed/-ing/-s) Etymology: Latin ululatus, past participle of ululare to howl, wail, of imitative origin : to utter a loud mournful usually protracted and rhythmical sound : cry out : howl, wail < the ululating air raid danger signal — J.D.Mabbott > < ululating wolves > < crowds on the stands ululated with joy — Robert Lynd > Synonyms:see roar