rehalogenizationn.
/riːˌhalədʒᵻnʌɪˈzeɪʃn/, /riːˌhalədʒn̩ʌɪˈzeɪʃn/, U.S. /riˌhælədʒənaɪˈzeɪʃ(ə)n/, /riˌhəˌlɑdʒənəˈzeɪʃ(ə)n/ Photography.
The process of rehalogenizing.
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reduction1871
intensification1879
rehalogenization1889
rehalogenizing1889
tanning1899
1889 R. Meldola Chem. of Photogr. 200 Since oxidizing or halogenizing agents are known to destroy the invisible image, it is but natural to suppose that the disappearance of the latter is due to gradual oxidation or to rehalogenization.
1919 Amer. Photogr. Oct. 606/2 It is far better to adopt the old method, sometimes known as rehalogenization, for harmonizing harsh negatives.
1958 Newnes Compl. Amateur Photogr. 323 As this process involves rehalogenisation of the silver image it is essential that the print and utensils used are completely free from hypo.
1967 E. Chambers Photolitho-offset iv. 48 An improvement in the dot etching properties of the positives can be effected by tanning the gelatin in proportion to the silver image... This process is known as rehalogenisation, or metallising.
1997 J. Hedgecoe Workbk. Darkroom Techniques 160 Rehalogenization, the process of converting deposits of black metallic silver back into silver halides.
This entry has been updated (OED Third Edition, December 2009; most recently modified version published online March 2022).
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n.1889