Final answer:
The term 'Avifors' denotes a transfiguration spell used to turn objects into birds within the magical lore of the Harry Potter series.
Step-by-step explanation:
The word 'Avifors' refers to a transfiguration spell in the wizarding world, particularly within the Harry Potter universe. When this spell is cast, it can transform objects into birds. As one of the many magical spells taught at Hogwarts School of Witchcraft and Wizardry, transfiguration spells change the form or appearance of an object, and 'Avifors' is a specific example used for transfiguring objects into avian creatures. It is used to transform an object into a bird. For example, a wizard can use the spell to turn a statue into a real bird. This spell is featured in the Harry Potter series by J.K. Rowling.