chromatism
(ˈkrəʊmətɪz(ə)m)
[ad. Gr. χρωµατισµός a colouring, dyeing, f. χρωµατ-ίζειν to colour. Cf. F. chromatisme.]
1. Natural colouring.
| 1721 Bailey, Chromatism, the natural Colour and Tincture of any thing. 1731 ― II, Chromatism (with Physicians) the natural tincture or colour of the blood, spittle urine, etc. 1881 in Syd. Soc. Lex. |
2. Optics. Chromatic dispersion or aberration.
| 1854 J. Hogg Microsc. i. ii. (1867) 44 The corrections of chromatism. 1878 Lockyer Stargazing 123 The chromatism on one lens shall be corrected by the other. |
3. = chromism.
| In mod. Dicts. |
4. Psychol. A secondary or hallucinatory sensation of colour; = chromæsthesia.
| 1903 [see photism]. 1957 Dorland's Med. Dict. (ed. 23) 278/1 Chromatism, a hallucinatory perception of colored light. |