ulu·la·tion \ˌ ̷ ̷ ̷ ̷ˈlāshən\noun (-s) Etymology: Latin ululation-, ululatio, from ululatus + -ion-, -io -ion 1.: a loud mournful usually protracted and rhythmical sound : howl 2.: the action of ululating : howling < the ululation of the ambulance — Christopher Morley > < the ululation of our despair — Sidney Alexander >