Definition of bezoar in English:



  • A small stony concretion that may form in the stomachs of certain animals, especially ruminants, and which was once used as an antidote for various ailments.

    • ‘They induced him to swallow therapeutic potions of oriental bezoar stone from the stomach of a goat and boiled spirits from a human skull.’
    • ‘Patients were still observed to empty liquids rapidly, leading to the ‘dumping syndrome’, and to retain solids, leading to bezoar formation.’
    • ‘An obstruction series or plain abdominal radiographs may be necessary to distinguish obstruction from parasites or bezoars.’
    • ‘Endoscopy revealed a large gastric bezoar and a 2 x 3 em lower esophageal ulcer that was thought to be the source of bleeding.’
    • ‘This sometimes results in a serious medical problem called gastric bezoar - more commonly known as a hairball - which may require surgical removal.’


Late 15th century (in the general sense stone or concretion): from French bezoard, based on Arabic bāzahr, bādizahr, from Persian pādzahr antidote.