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