u ‧ lu ‧ late /ˈjuːljəleɪt, ˈjuːljʊleɪt, ˈʌl- $ ˈʌl-, ˈjuː-/ BrE AmE verb [intransitive]
[ Date: 1600-1700 ; Language: Latin ; Origin: past participle of ululare , from the sound ]
literary to cry out with a long high sound, especially because you are very sad or in pain SYN wail
—ululation /ˌjuːljəˈleɪʃ ə n, ˌjuːljʊˈleɪʃ ə n, ˌʌl- $ ˌʌl-, ˌjuː-/ noun [uncountable and countable]