| 单词 | burnt alum |
| 释义 | > as lemmasburnt alum c. Calcined or treated by fire for use as a drug, pigment, etc., as burnt alum, burnt carmine, burnt ochre, burnt sienna, burnt sponge, burnt umber, etc. (see alum n.1, carmine n. and adj., etc.); † burnt-brass n. Obsolete obsolete name for copper sulphate.† burnt copper n. Obsolete copper oxide.† burnt lead n. Obsolete lead sulphide. ΘΚΠ the world > matter > properties of materials > temperature > heat > heating or making hot > subjection or exposure to heat or fire > [adjective] > subjected to heat or fire decoctc1420 concoct1534 well-burnt1548 burnt1661 heat-treated1946 the world > the earth > minerals > types of mineral > sulphides and related minerals > [noun] > galena group > lead sulphide plumbago1617 plumbary1657 galena1671 burnt lead1728 slickenside1768 lead glance1811 galenite1868 the world > matter > chemistry > elements and compounds > metals > specific elements > lead > [noun] > compounds > lead sulphide plumbago1617 burnt lead1728 the world > matter > chemistry > elements and compounds > metals > specific elements > copper > [noun] > compounds ferretto1662 burnt copper1790 the world > matter > colour > named colours > brown or brownness > [noun] > reddish brown > sienna Terra Sienna1760 burnt sienna1844 Italian earth1854 1661 R. Lovell Πανζωορυκτολογια, sive Panzoologicomineralogia 459 Cathereticks, burnt pumice-stone, burnt alum, burnt vitriol, burnt antimony or crocus metallorum..Causticks, live lime, burnt-brasse, sublimat mercury. 1728 E. Chambers Cycl. at Lead Burnt-Lead is..made of Plates of Lead melted in a Pot with Sulphur, and reduced into a brown Powder. 1790 W. Richardson Chem. Princ. Metallic Arts 124 When it [copper] is exposed to a red heat..it separates in scales, which are called burnt copper. 1800 Med. & Physical Jrnl. 4 412 To medical practitioners in general, burnt sponge is known to be the basis of the Coventry remedy. 1844 W. M. Thackeray May Gambols in Wks. (1899) XIII. 441 I have so often wandered before with burnt-sienna plough-boys. 1846 C. Dickens Pictures from Italy 41 Two burnt-sienna natives. 1946 R. Lehmann Gipsy's Baby and Other Stories 78 The expanses of burnt sienna mud. < as lemmas |
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