- 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.
- A name for certain calculi or concretions found in the stomach or intestines of some animals (especially ruminants), formerly supposed to be efficacious in preventing the fatal effects of poison, and still held in estimation in some eastern countries.
- 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.
- See <er>Antelope</er>.
- the wild goat (<spn>Capra ægagrus</spn>).
- an old preparation of oxide of antimony.
- A mass, usually of hair or undigested vegetable matter, found in an animal's <xref>intestines</xref>. A <xref>hairball</xref>.
- An <xref>enterolith</xref>.