osmicationn.
/ˌɒzmᵻˈkeɪʃn/, U.S. /ˌɑzməˈkeɪʃ(ə)n/ Biology.
Staining, fixation, or other treatment with osmic acid or osmium tetroxide.
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the world > life > biology > laboratory analysis > processes > [noun] > using stains or dyes
overstaining1880
Gram stain1884
Nissl method1895
osmication1899
counterstaining1901
cytophotometry1952
polychroming1958
immunofluorescence1960
1899 Jrnl. Morphol. 15 Suppl. 73 A curious effect of osmication was noted in some peripherally lying cells..in a preparation of Spelerpes ruber, which had been fixed in Flemming's chromo-aceto-osmic mixture.
1934 L. W. Sharp Introd. Cytol. (ed. 3) iv. 69 After osmication or silver impregnation they may appear like hollow structures with a blackened periphery.
2001 Jrnl. Histochem. & Cytochem. 49 1351 By employing a secondary fixation with tannic acid combined with low pH osmication.., we were able to visualize individual actin filaments.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).
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n.1899