单词 | morphoplasm |
释义 | morphoplasmn. Biology. rare (now historical). A distinct component of the protoplasm of a cell: (a) = trophoplasm n. at tropho- comb. form 1; (b) = metaplasm n.2 ΘΚΠ the world > life > biology > substance > cell > cell substance > [noun] > protoplasm or cytoplasm biogen1848 protoplasm1848 protoplast1851 matrix1854 cytoplasm1857 plasma1863 bioplasm1869 plasmogen1888 morphoplasm1893 periplasm1925 1893 W. N. Parker & H. Rönnfeldt tr. A. Weismann Germ-plasm 38 I shall..call the vital substance of the cell the ‘formative plasm’ or morphoplasm..in contrast to the idioplasm. 1900 Amer. Naturalist 34 322 [According to His] the protoplasm [of the salmon egg]..is made up of a clear ‘Hyaloplasma’ and a turbid, granular ‘Morphoplasma’.] 1913 Philos. Rev. 22 95 In his [sc. Weismann's] last theory, as in the first, he recognizes two elements in the cell,—morphoplasm for the cellular body and idioplasm for the nucleus. Derivatives morphoˈplasmic adj. ΚΠ 1900 Amer. Naturalist 34 323 This morphoplasmic framework is continuous with the nucleus. 1906 Science 2 Mar. 340/1 The search for cell homologies has given place in large measure to the search for ‘formative substances’, ‘morphogenic substances’ or ‘morphoplasmic substances’ as the visible differentiations of the egg have been variously called. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < n.1893 |
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