In the first Harry Potter novel, Professor Severus Snape hopes to embarrass Harry by quizzing him on the topic of bezoars. According to Snape, they are stony masses found in the stomach of a goat that ...
Bezoars are compact masses of undigested material that accumulate in the gastrointestinal tract, most commonly in the stomach, and can occasionally travel into the intestines, leading to obstruction.
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