synapsis

noun
syn·ap·sis | \ sə-ˈnap-səs \
plural synapses\sə-ˈnap-ˌsēz \

Definition of synapsis 

: the association of homologous chromosomes that is characteristic of the first meiotic prophase

Examples of synapsis in a Sentence

Recent Examples on the Web

Some synapses get pruned, all making the brain more efficient. Karen Campbell, BostonGlobe.com, "Her quest to understand the teenage brain," 12 July 2018 Counsell, usually not much for milestones, offered a quick synapsis of his team's standing. Todd Rosiak, Milwaukee Journal Sentinel, "Brewers' depth once again pays dividends thanks to Keon Broxton," 29 June 2018 This is the lowest layer of the retina and serves to link the light-sensitive tissue above to the synapses which lead to the brain. The Economist, "The eye's structure holds information about the health of the mind," 28 June 2018 In particular, the drugs appeared to fuel the growth of dendritic spines and axons, the appendages that brain cells of all sorts use to reach out in the darkness and create connections, or synapses, with other brain cells. Melissa Healy, latimes.com, "Psychedelic drugs change brain cells in ways that could help fight depression, addiction and more," 12 June 2018 And in dialogue, his effervescing synapses and manic facility with language—the tools of his trade as a comedian—are stabilized and counter-balanced. James Parker, The Atlantic, "The Wisdom of Russell Brand," 10 June 2018 These structures control the traffic of ions (such as sodium, potassium and calcium) in and out of the cells and neurotransmitters across the synapses—and thus the excitability of certain brain cells and brain networks. R. Allan Purdy, Scientific American, "Can Anything Stop My Migraine?," 1 May 2017 Neuroscientists have long believed that memories are stored in the synapses, or junctions between the brain’s neurons. Brigit Katz, Smithsonian, "Scientists Say They Have Transferred ‘Memories’ Between Snails," 15 May 2018 On the opposite wall, the lines cluster into thatches of electric crayon color — seaweed, waves, electricity, brain synapses. Roberta Smith, New York Times, "Cy Twombly, Redefined by His Drawings," 11 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'synapsis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of synapsis

1895, in the meaning defined above

History and Etymology for synapsis

New Latin

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Statistics for synapsis

Last Updated

16 Aug 2018

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Time Traveler for synapsis

The first known use of synapsis was in 1895

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More Definitions for synapsis

synapsis

noun
syn·ap·sis | \ sə-ˈnap-səs \
plural synapses\-ˌsēz \

Medical Definition of synapsis 

: the association of homologous chromosomes with chiasma formation that is characteristic of the first meiotic prophase and is held to be the mechanism for genetic crossing-over

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