A treatise on beasts esp one of the moralizing or allegorical monster tales written in the center Ages
- a medieval guide (usually illustrated) with allegorical and amusing information of real and fabled animals
"medieval treatise on beasts" often with moralistic overtones, 1818, from Medieval Latin bestiarium "a menagerie," in addition "a novel about pets", from bestia (see creature). A Latin term for such works ended up being liber de bestiis compositus. Roman bestiarius required "a fighter against beasts inside community entertainments."