ˈbēzō(ə)r noun
or bezoar stone
( -s )
Etymology: Middle French bézoard, from Spanish bezoar, from Arabic bāzahr, bādizahr, from Persian bād-zahr, pād-zahr, from pād protecting (against) + zahr poison
: any of various concretions found in the alimentary organs (especially of certain ruminants) formerly believed to possess magical properties and used in the Orient as a medicine or pigment — see german bezoar , oriental bezoar , phytobezoar , trichobezoar , western bezoar