oxychromatinn.
/ˌɒksɪˈkrəʊmətɪn/, U.S. /ˌɑksiˈkroʊmədən/ Cell Biology. Now rare or disused.
Oxyphilic nuclear material; spec. a (supposed) oxyphilic form of chromatin.
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the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromatin
chromatin1882
oxychromatin1894
basichromatin1902
trophochromatin1905
sex chromatin1909
heterochromatin1932
1894 Amer. Naturalist 28 975 Œdematin corresponds, in part at least, to Heidenhain's oxychromatin, Pfitzner's parachromatin, and Schwarz' paralinin.
1895 Jrnl. Royal Microsc. Soc. 159 ‘Oxychromatin’ and ‘cyanophilous granulation’ are independent structural parts of the chromatin framework.
1924 E. G. Conklin in E. V. Cowdry Gen. Cytol. ix. 550 The oxychromatin which escapes into the cell body at mitoses is often more abundant than that which goes to form the chromosomes.
1948 W. Andrew tr. E. D. P. de Robertis Gen. Cytol. vii. 140 With ultracentrifugation the nucleus is deformed and the nuclear structures are stratified in the following layers..: (1) nucleolus, (2) basichromatin, (3) oxychromatin, (4) karyolymph.
1949 Amer. Naturalist 83 101 The form of the chromosome is due primarily to the protein thread (definitely non-histone and identified with oxychromatin) of the ‘residual chromosome’.
This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).
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n.1894