Ululation n. : A howling, as of a dog or wolf; a wailing.

Example:
Ululation is a high-pitched, vibrating wail made by women in the Middle East/Africa. How do they do it?

Taxonomy
ululation, tongue, Libyan women, free encyclopedia, commonly used, celebrations, Libya, history, traditional wedding, wedding songs, the Middle East, ancient Greece, mentions, Companion, Around the world, Oxford University Press, search, free dictionary.

Defination from the web:
ululation performed to honor someone. ... Ululation is incorporated into African musical styles such as Shona music, where it is a form of audience participation, along with clapping and call-and-response. ...