单词 | synapse |
释义 | synapsen. Anatomy. The junction, or structure at the junction, between two neurons or nerve-cells. ΘΚΠ the world > life > the body > nervous system > substance of nervous system > [noun] > nerve cell > junction between synapsis1897 synapse1899 1899 T. C. Allbutt et al. Syst. Med. VI. 512 A feature of the concatenations of neurons more probably explicative of modification and delay of nerve impulses is the synapse. 1905 McDougall Physiol. Psychol. ii. 27 A simple kind of synapse is formed by the division of the end of an axon..into a number of fine twigs that surround the cell-body of another neurone. This entry has not yet been fully updated (first published 1919; most recently modified version published online March 2022). synapsev. Anatomy. intransitive. Of a nerve-cell or axon: to form a synapse. ΘΚΠ the world > life > the body > nervous system > substance of nervous system > [verb (intransitive)] > junction between nerve cells synapse1910 1910 Practitioner July 98 The rubro-spinal portion (Monakow's bundle) connects the red nucleus with the opposite side of the spinal cord, probably terminating by synapsing round the anterior horn cells. 1963 R. P. Dales Annelids vi. 119 The axon is T-shaped, the cell body lying ventrally or ventro-laterally at the bottom of the T and the tips of the arms synapsing with those of the next neuron. 1979 Sci. Amer. Sept. 84/1 Many such cells do not themselves make contact with a motor neuron; they synapse instead on yet other neurons of the great intermediate net. Derivatives syˈnapsed adj. [compare synapsis n. 2] Genetics (of chromosomes) in a state of synapsis. ΘΚΠ the world > life > biology > biological processes > genetic activity > [adjective] > stages of mitosis or meiosis homotypical1870 heterotypical1888 homoeotypical1888 heterotypic1889 homoeotypic1889 skein1889 heterotype1895 homotype1895 synaptic1895 synaptenic1900 presynaptic1903 homotypic1904 dictyate1905 post-meiotic1905 premeiotic1905 telophasic1907 postsynaptic1909 metaphase1912 prophasic1912 telosynaptic1912 interkinetic1927 synapsed1931 synizetic1931 interphasic1948 1931 Amer. Jrnl. Bot. 18 370 The synapsed spireme strands traverse the nucleus freely. 1946 Nature 21 Dec. 912/1 Perhaps such chemical agents in the egg help in separating the synapsed X-chromosomes. 1974 Nature 12 Apr. 566/2 The X element contains three synapsed chromosomes. This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2022). < n.1899v.1910 |
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