photochromismn.
/ˌfəʊtə(ʊ)ˈkrəʊmɪz(ə)m/, U.S. /ˌfoʊdəˈkroʊˌmɪz(ə)m/, /ˌfoʊdoʊˈkroʊˌmɪz(ə)m/ Science.
The phenomenon of undergoing a reversible change of colour or shade when illuminated with light of appropriate wavelength.
ΘΚΠ
the world > matter > colour > change of colour > [noun] > photochromism
photochromism1951
photochromy1951
photochromicity1966
the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [noun] > study of chemical action of light > change of colour by specific exposure
phototropy1900
phototropism1921
photochromism1951
photochromy1951
tenebrescence1953
photochromicity1966
1951 Physics Abstr. A. 54 204/2 (heading) Photochromism in the bianthrone series.
1960 New Scientist 2 June 1424/1 This new kind of reversible colour change in organic compounds was first described by me [sc. Yehuda Hirshberg] in 1950, and I called it ‘photochromism’.
1981 New Phytologist 89 543 One important issue discussed..is photochromism, namely the involvement of two absorption forms of a pigment.
2004 Materials Res. Bull. 39 1167 The composite film shows photochromism in the violet color region.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1951