chromatismn.
/ˈkrəʊmətɪz(ə)m/, U.S. /ˈkroʊməˌtɪzəm/ 1. Natural colouring.
ΘΚΠ
the world > matter > colour > state or mode of having colour > [noun] > natural colouring
chromatism1721
1721 N. Bailey Universal Etymol. Eng. Dict. Chromatism, the natural Colour and Tincture of any thing.
1731 N. Bailey Universal Etymol. Eng. Dict. II Chromatism (with Physicians) the natural tincture or colour of the blood, spittle urine, etc.
1881 in New Sydenham Soc. Lexicon
2. Optics. Chromatic dispersion or aberration.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > chromatism > [noun]
chromatic dispersion1831
chromatism1854
1854 J. Hogg Microscope i. ii. 35 The corrections for chromatism.
1878 J. N. Lockyer Stargazing 123 The chromatism on one lens shall be corrected by the other.
3. = chromism n. (In modern dictionaries.)
4. Psychology. A secondary or hallucinatory sensation of colour; = chromaesthesia n.
ΘΚΠ
the mind > mental capacity > psychology > mental image > [noun] > association of sense impressions > association of sound and colour
chromatism1903
chromaesthesia1909
1903 F. W. H. Myers Human Personality I. Gloss. at Secondary Sensations With some persons every sensation of one type is accompanied by a sensation of another type; as, for instance, a special sound may be accompanied by a special sensation of colour or light (chromatisms or photisms).
1957 Dorland's Illustr. Med. Dict. (ed. 23) 278/1 Chromatism, a hallucinatory perception of colored light.
This entry has not yet been fully updated (first published 1889; most recently modified version published online June 2022).
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