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| 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 arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| litharge (ˈlɪθɑːdʒ) | |
| —n | |
| another name for lead monoxide | |
| [C14: via Old French from Latin lithargyrus, from Greek, from lithos stone + arguros silver] | |
litharge
one of two mineral forms of lead(II) oxide (PbO). It is found with the other form, massicot, as dull or greasy, very heavy, soft, red crusts in the oxidized zone of lead deposits, as at Cucamonga Peak and Fort Tejon, Calif., U.S., and near Hailey, Idaho, U.S. For mineralogic properties, see oxide mineral (table). Synthetic lead(II) oxide is called litharge, though it is a mixture of litharge and massicot.
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