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单词 synapse
释义

synapsen.

Brit. /ˈsʌɪnaps/, /ˈsɪnaps/, /sᵻˈnaps/, U.S. /ˈsɪnˌæps/, /səˈnæps/
Etymology: < Greek σύναψις: see synapsis n.
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.

Brit. /ˈsʌɪnaps/, /ˈsɪnaps/, /sᵻˈnaps/, U.S. /ˈsɪnˌæps/, /səˈnæps/
Etymology: < synapse n.
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).
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n.1899v.1910
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