| 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. |
| Gay-Lussac (gā'lə-sāk') Pronunciation Key
French chemist and physicist who in 1808 developed a law governing the ratio of volumes of gases participating in chemical reactions. In that same year, with Louis Jacques Thénard, he discovered the element boron. |