March 2, 2017 2:47 PM EST

After introducing the world to magical words such as “Muggle,” “Horcux” and “Quidditch” in the Harry Potter series, J.K. Rowling is back with another fantastical name for fans to add to their wizarding vocabulary.

During a recent interview with Entertainment Weekly, the author explained the origin of the Fantastic Beasts and Where to Find Them term “Choranaptyxic”—her name for the ability of the bird-snake hybrid Occamy to grow and shrink to fit its surroundings:



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