A hard indigestible mass of material, such as hair, plant fibers, or seeds, found in the stomach or intestine of animals, especially ruminants and sometimes humans. Bezoars were formerly considered to be antidotes to poisons and to possess magic properties.
[Middle English bezear, stone used as antidote to poison, probably from Old French bezahar, gastric or intestinal mass used as antidote to poison, from Arabic bāzahr, from Persian pādzahr : pād-, protector (from Avestan pātar-; see pā- in the Appendix of Indo-European roots) + zahr, poison (from Middle Persian; see gwhen- in the Appendix of Indo-European roots).]
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