Which term is defined as "a collection of wild or unusual animals for exhibition"?

The term that denotes "a collection of wild or unusual animals for exhibition" is menagerie. This word specifically refers to a diverse collection of animals, often kept for public viewing, and historically has been associated with the exhibition of exotic species. Menageries are distinct from other types of animal collections because they emphasize the uniqueness or rarity of the animals displayed, often including creatures that are not typically seen in a more traditional setting, such as a zoo.

In contrast, while a sanctuary is a place where animals are protected and cared for, it does not primarily focus on exhibition. An aviary, on the other hand, is specifically designed for birds, whereas a zoo encompasses a broader range of animal species and typically emphasizes education and conservation efforts. Therefore, the correct identification of "a collection of wild or unusual animals for exhibition" aligns perfectly with the definition of menagerie.