The word zoomorphism derives from Ancient Greek: ζωον, romanized: zōon, lit. 'animal' and Ancient Greek: μορφη, romanized: morphē, lit. 'form; shape'. In the context of art, zoomorphism could describe art that imagines humans as non-human animals. It can also be defined as art that portrays one species of animal like another species of animal or art that uses animals as a visual motif, sometimes referred to as "animal style." In ancient Egyptian religion, deities were depicted in animal form which is an example of zoomorphism in not only art but in a religious context. It is also similar to the term therianthropy; which is the ability to shape shift into animal form, except that with zoomorphism the animal form is applied to a physical object. It means to attribute animal forms or animal characteristics to other animals, or things other than an animal; similar to but broader than anthropomorphism. Contrary to anthropomorphism, which views animal or non-animal behavior in human terms, zoomorphism is the tendency of viewing human behavior in terms of the behavior of animals. It is also used in literature to portray the act of humans or objects with animalistic behavior or features. The use of zoomorphism served as a decorative element to objects that are typically quite simple in shape and design.

Animal style art is an approach to decoration found from Ordos culture to Northern Europe in the early Iron Age, and the barbarian art of the Migration Period, characterized by its emphasis on animal motifs. The zoomorphic style of decoration was used to decorate small objects by warrior-herdsmen, whose economy was based on breeding and herding animals, supplemented by trade and plunder. Animal art is a more general term for all art depicting animals.