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单词 plasmosome
释义

plasmosomen.

Brit. /ˈplazməsəʊm/, U.S. /ˈplæzməˌsoʊm/
Origin: Formed within English, by derivation. Etymons: plasmo- comb. form, -some comb. form.
Etymology: < plasmo- comb. form + -some comb. form. Compare earlier plasmasome n.
Cell Biology. Now rare.
= nucleolus n.
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the world > life > biology > substance > cell > cell substance > [noun] > protoplasm or cytoplasm > unit of
bioplast1870
plastid1871
plastidule1872
cytoplast1885
plasome1891
idioblast1893
plasmosome1896
protoplast1898
biogen1899
1896 E. B. Wilson Cell i. 24 The so-called true nucleoli or plasmosomes.
1934 Genetics 19 184 In D. melanogaster, none of the elements show a constant association with the plasmosome.
1977 Jrnl. Morphol. 154 466/2 Beyond this point nuclear reorganization involves a terminal phase of nucleolar restructuring whereby there is a final regrouping of the ultrastructural components to form the separate plasmosomes and karyosomes of bipartite nucleoli of old, slowly deteriorating cells.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
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n.1896
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