bichromen.1
/ˈbʌɪkrəʊm/ Chemistry.
Bichromate of potassium or sodium. Also attributive (see quot. 1904).
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the world > matter > chemistry > chemical substances > salts > [noun] > salts named by atomic number > chromates > bichromates
dichromate1827
bichromate1854
bichrome1896
1896 G. Duerr Bleaching iv. 56 The following colours..require to be passed through a solution of bichrome in order to develop or raise the colours.
1904 Westm. Gaz. 31 Dec. 14/2 Another improvement..is the ‘Bichrome’ lamp, in which the light is filtered through a tank containing a solution of bichromate with certain selected aniline dyes.
This entry has not yet been fully updated (first published 1972; most recently modified version published online September 2018).
bichromeadj.n.2
/ˈbʌɪkrəʊm/ A. adj.
Having two colours.
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the world > matter > colour > variegation > [adjective] > two colours
dichroitic1822
dichromatica1830
dichroic1849
dichroous1856
dichromic1860
dichroistic1877
bicolour1889
two-toned1897
twi-coloured1903
two-tone1906
bichrome1929
duotone1934
1929 Gryphon (Univ. Leeds) Feb. 155 To hurl the completed bichrome palimpsest in my face with a hideous oath.
1948 A. L. Kroeber Anthropol. (rev. ed.) xviii. 830 Mochica ceramics are only bichrome.
1960 K. M. Kenyon Archaeol. in Holy Land viii. 200 The decoration is bichrome, nearly always red and black.
B. n.2
A two-coloured design, etc.
ΘΚΠ
the world > matter > colour > variegation > [noun] > two colours
dichroism1819
dichromatism1836
bichrome1921
1921 M. C. Burkitt Prehist. xix. 265 Bichromes produced by restoring an animal painted in one colour in another.
1959 J. D. Clark Prehist. Southern Afr. x. 278 This monochrome group is followed by shaded polychromes and bichromes.
This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2018).
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n.11896
adj.n.21921