| 单词 | malachite green |
| 释义 | > as lemmasmalachite green malachite green n. (a) a deep green colour like that of malachite; (b) any of various green dyes, esp. one of the triphenylmethane series prepared from benzaldehyde and N,N-dimethylaniline. ΘΚΠ the world > matter > colour > named colours > green or greenness > green colouring matter > [noun] > pigment or dye > dyes and dyestuffs greening worta1200 greening weeda1399 spinach-green1845 emeraldine1864 methyl green1873 malachite green1875 viridine1875 1875 Proc. Zool. Soc. 356 Emu-eggs..are of a fine malachite green colour. 1880 Jrnl. Soc. Arts 445 The well-known methyl green..is now..replaced by the malachite green, discovered by Oscar Doebner. 1954 Thorpe's Dict. Appl. Chem. (ed. 4) XI. 692/1 Classical examples of the synthesis are the manufacture of Malachite Green from benzaldehyde and dimethylaniline and of Brilliant Green. 1991 Jrnl. Design Hist. 4 236/2 She recommended a dining suite stained ‘malachite green’. 1992 Pract. Fishkeeping July 112/1 The ‘proactive’ fishkeeper will medicate with malachite green and formalin..to bring down populations of protozoan parasites. < as lemmas |
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