| Thénard (tā-när') Pronunciation Key
French chemist who is best known for his 1818 discovery of hydrogen peroxide. Earlier, working with Joseph Gay-Lussac, Thénard also discovered boron (1808). |
| a chattering or flighty, light-headed person. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
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