| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
The belief in more than one god. The ancient Greeks, for example, were polytheists; their gods included Apollo, Athena, Dionysus, and Zeus. (Compare monotheism.)