metachromasyn.
/ˌmɛtəˈkrəʊməsi/, U.S. /ˌmɛdəˈkroʊməsi/ Histology and Biology.
= metachromasia n.
ΘΚΠ
the world > life > biology > substance > staining quality of substance > [noun]
metachromatism1893
metachromasia1896
polychromatophilia1897
metachromasy1903
sudanophilia1907
polychromasia1909
acidophilia1913
heteropycnosis1925
fuchsinophilia1940
basophilia1946
isopycnosis1950
1903 Lancet 18 July 177/1 The cells which contain granules contain also a store of ferment (zymogen), whilst the cells that are destitute of granules exhibit the reaction of mucin (metachromasy).
1945 J. R. Baker Cytol. Technique (ed. 2) vi. 165 Both thionine and toluidine blue exhibit the phenomenon of metachromasy; that is, they stain certain substances in one colour and others in another.
1953 A. G. E. Pearse Histochem. xiv. 324 Plates IVc and IVd illustrate the effect of testis hyaluronidase on the metachromasy of normal connective tissue mucin.
1971 E. Gurr Synthetic Dyes i. ii. 63 The significance of the dimer spectra in terms of theories of metachromasy is discussed.
1995 Acta Histochemica 97 159 The chromatin of all cells examined exhibited metachromasy and a birefringence of greenish-yellow interference color.
This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022).
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n.1903