noun.
A person having a very powerful voice.
noun.
In mammalogy: The ursine howler, Mycetes ursinus, a platyrrhine monkey of South America; an alouate; any species of Mycetes. See cut under howler.
noun.
[capitalized] The genus of howlers: same as Mycetes.
noun.
In Protozoa: A trumpet-animalcule, or so-called funnel-like polyp.
noun.
[capitalized] The typical genus of Stentoridæ, of elongate, trumpetlike, or infundibuliform figure, with rounded peristome.