Bezoar

n. hard formation found in the stomach or intestines of some animals

A bezoar or enterolith is a sort of calculus or concretion, a stone found in the intestines of mostly ruminant animals, but occurring among others including humans. There are several varieties of bezoar, some of which have inorganic constituents and others organic.
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n. bezoar, hard formation found in the stomach or intestines of some animals

(n.)
A calculous concretion found in the intestines of certain ruminant animals (as the wild goat, the gazelle, and the Peruvian llama) formerly regarded as an unfailing antidote for poison, and a certain remedy for eruptive, pestilential, or putrid diseases. Hence: Any antidote or panacea.
  

n.
زہر باد , زہر مہرہ , ترياق