† tithonizev.
Photography (in the terminology of John William Draper). Obsolete. rare.
1. intransitive. To cause photochemical effects.
ΚΠ
1842 J. W. Draper in London, Edinb., & Dublin Philos. Mag. 21 456 The indigo ray, ordinarily so active, does not tithonize at all.
2. transitive. To expose to the action of tithonic rays (see tithonic adj.). Cf. actinize v.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > solar radiation > affect by solarization [verb (transitive)]
tithonize1843
solarize1853
1843 [implied in: J. W. Draper in Ann. Electr., Magnetism, & Chem. 10 464 A lens is laid on a tithonized surface and left in the dark.].
1844 J. W. Draper in London, Edinb., & Dublin Philos. Mag. 25 7 Before placing the tubes in the prismatic spectrum we tithonize them in the daylight.
Derivatives
tithonized adj.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [adjective] > of or affected by rays causing chemical changes
tithonized1843
actinic1845
1843 J. W. Draper in Ann. Electr., Magnetism, & Chem. 10 464 A lens is laid on a tithonized surface and left in the dark.
This entry has been updated (OED Third Edition, January 2018; most recently modified version published online September 2018).
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