stentor

A loud-voiced Greek herald in the Iliad.

One with a loud or piercing voice.

Any of several trumpet-shaped ciliate protozoans of the genus Stentor, living in freshwater habitats and feeding chiefly on smaller microorganisms.

A person having a very powerful voice.

In mammalogy: The ursine howler, Mycetes ursinus, a platyrrhine monkey of South America; an alouate; any species of Mycetes. See cut under howler.