1838 T. Thomson Chem. Org. Bodies 96 [Raab's] name of schillerstoff..was by Martius of Erlangen translated into bicolorin, and by Kastner into polychrome.

1857 W. A. Miller Elements Chem. III. 513 Esculin or polychrome... —This substance is contained in the bark of the horse-chesnut [sic].

1909 Boston Med. & Surg. Jrnl. 7 Oct. 495/1 The blood showed 6% of reticulated forms, with ·4% of polychromes.

1933 Lancet 3 June 1173/1 Hawes..hazarded the suggestion that the stippled cell was merely a variant of the polychrome.

1819 E. Dodwell Classical & Topogr. Tour Greece I. 465 The polychrome, or many-coloured vases, are principally found in the island of Ægina.

1837 Civil Engineer & Architect's Jrnl. 1 72/2 I have already had occasion to construct a great polychrome edifice, a post~office.

1850 J. Leitch tr. K. O. Müller Ancient Art (new ed.) §414. 576 The probably Lucanian vase, found in Magna Grecia, is polychrome.

1898 (title) The Polychrome Bible. Edited by Paul Haupt.

1962 I. Murdoch Unofficial Rose vii. 75 Her polychrome being fell into an authoritative pattern which proclaimed her free.

2000 Ceramic Rev. Jan. 28/1 The monochrome and polychrome masterpieces of the Ming (1368–1644) and Qing (1644–1911) periods.

1895 G. W. Cale tr. P. G. Unna in St. Louis Med. & Surg. Jrnl. July 30 All that is necessary is to decolorize with a concentrated tannin solution the sections overstained with my polychrome-methyl-blue solution.

1925 H. J. Conn et al. Biol. Stains v. 47 The polychrome properties just mentioned are likely to develop in a methylene blue solution upon standing. Anyone who has had much experience with the stain is familiar with the occasional green tones from methylene green, the reddish shades of methylene azure..and methylene violet. Such a solution is known as ‘polychrome methylene blue’.

1993 Histochem. Jrnl. 25 670 When histochemical, immunocytochemical, and polychrome stains are performed together on the same section, crisp images are obtained.

1860 E. Falkener Dædalus vii. 155 Monuments so numerous that it would be difficult to say that any temple existed in Greek times without being polychromized.

1882 Nature 30 Nov. 119/2 He presented pieces of gold and silver jewellery, polychromised industrially with oxides of copper, by his processes.

1899 Catholic World July 458 Certain ornaments which had originally been polychromed by Jean Zutterman in 1537.

1963 D. Robertson Pre-Columbian Archit. i. 12 A wide range of colors used for mural paintings and for polychroming architecture and sculpture came from the resources of the earth, both mineral and vegetable.

1988 Renaissance Stud. 2 168 The painter Rogier van der Weyden was paid 100 crowns for having polychromed the images supplied by Jacob and Jan.

1924 [implied in: Jrnl. Bacteriol. 9 405 The method involves pipetting about one cc. of a well polychromed, Loeffler's methylene blue over the agar slant culture and tilting the tube. (at polychromed adj. 2)].

1925 H. J. Conn et al. Biol. Stains v. 48 Methylene blue should be partly polychromed in order to have its best staining powers.

1958 J. R. Baker Princ. Biol. Microtechnique xiv. 268 It was his [sc. Giemsa's] purpose to avoid methylene blue that had been polychromed at random, and to use instead known quantities of known dyes.

1963 M. J. Lynch et al. Med. Lab. Technol. xiii. 256/1 The methylene blue is polychromed by heating with sodium bicarbonate.