单词 | plasmogen |
释义 | † plasmogenn. Biology. Obsolete. rare. Lankester's term for: a hypothetical complex organic compound present in cytoplasm, of which other compounds in cytoplasm were supposed to be components or precursors. ΘΚΠ the world > life > biology > substance > cell > cell substance > [noun] > protoplasm or cytoplasm biogen1848 protoplasm1848 protoplast1851 matrix1854 cytoplasm1857 plasma1863 bioplasm1869 plasmogen1888 morphoplasm1893 periplasm1925 1888 E. R. Lankester in Encycl. Brit. XXIV. 817/1 Physiologists have come to use the word ‘protoplasm’ for one of the chemical substances of which Schultze's protoplasm is a structural mixture—namely, that highest point in the chemical elaboration of the molecule which is attained within the protoplasm, and up to which some of the chemical bodies present are tending... This ‘critical’ substance, sometimes called ‘true protoplasm’, should assuredly be recognized by a distinct name ‘plasmogen’. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online June 2018). < |
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