单词 | cœnocyte |
释义 | cœnocyten. Biology. = syncytium n. a, esp. one formed by nuclear division. ΘΚΠ the world > life > biology > substance > cell > cell organelle or contents > [noun] > nucleus > structure containing several syncytium1877 cœnocyte1900 myoball1976 1900 J. R. Green Introd. Veg. Physiol. i. 11 Other cœnocytes exist in which, besides the limiting wall, certain transverse walls exist, dividing the chamber into compartments. 1902 Encycl. Brit. XXV. 265/2 Instead of a single relatively large nucleus, each cell is found to contain many small nuclei, and is spoken of as a cœnocyte. 1912 J. S. Huxley Individual in Animal Kingdom iv. 89 Botanists distinguish between cells, which have one nucleus, and coenocytes, or masses of protoplasm with many nuclei. 1952 New Biol. 13 100 Such a non-septate, multi-nucleate system is called a coenocyte. Derivatives cœnocytic adj. /ˌsiːnəʊˈsɪtɪk/ ΘΚΠ the world > life > biology > substance > cell > cell organelle or contents > [adjective] > having nucleus > structure containing several acellular1886 cœnocytic1900 1900 J. R. Green Introd. Veg. Physiol. xxvi. 421 The fact that it is cœnocytic is shown by the presence of a number of nuclei in the protoplasmic mass. 1912 J. S. Huxley Individual in Animal Kingdom iv. 160 In the third type (Coenocytic) the nucleus alone divides, and the final result is a coenocyte. 1952 Sci. News 25 58 Valonia macrophysa, a coenocytic alga growing in seawater, will accumulate potassium ions in the sap to a high concentration. 1968 H. Harris Nucleus & Cytoplasm i. 10 It is thus merely the phenomenon of nuclear growth without nuclear division which distinguishes Acetabularia from many coenocytic organisms. This entry has not yet been fully updated (first published 1972; most recently modified version published online December 2018). < n.1900 |
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