| 单词 | lead white |
| 释义 | > as lemmaslead white lead white n. a white pigment containing lead; spec. a mixture of carbonate of lead and basic carbonate of lead, esp. used in paint and having a faint reddish undertone; (also) the paint based on this. Cf. white lead n. 1.The use of lead white paint is now widely banned, except in small quantities as an artist's material, because of toxicity to manufacturers and users and to the environment.Typical chemical formula: (approx.) 2PbCO3.Pb(OH)2. ΚΠ 1598 J. Mosan tr. C. Wirsung Praxis Medicinæ Vniuersalis viii. xii. 743 Take Lead as much as you please, and beate it very thin, then poure as much distilled vineger vpon it vntill it be well couered, then will it be lead white. 1770 A. Young Six Months Tour N. Eng. I. vi. 388 Adjoining, a small dressing-room, the ceiling gilt scrolls on a lead white, light and pleasing. 1880 Artist Oct. 291/1 The chief Whites of the palette are those of lead, zinc, and barium, and the best Lead white is the carbonate of that metal. 2011 N.Y. Rev. Bks. 14 July 16/3 He was to build those structures up, over dun grounds, with lead white and red earth, chilly vine black and drab vandyke brown—plainspoken, workingman's pigments. < as lemmas |
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