• synonyms


[ si-nap-sis ]
/ sɪˈnæp sɪs /

noun, plural syn·ap·ses [si-nap-seez] /sɪˈnæp siz/.

Also called syndesis. Cell Biology. the pairing of homologous chromosomes, one from each parent, during early meiosis.
Physiology. synapse.

Nearby words

synalepha, synalgia, synaloepha, synapse, synapsid, synapsis, synapte, synaptic, synaptic cleft, synaptic conduction, synaptic gap

Origin of synapsis

1645–55; < New Latin < Greek sýnapsis junction, equivalent to synap- (stem of synáptein to make contact, equivalent to syn- syn- + (h)áptein to touch) + -sis -sis
Related formssyn·ap·tic [si-nap-tik] /sɪˈnæp tɪk/, syn·ap·ti·cal, adjectivesyn·ap·ti·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for synaptic

  • Perhaps compose a fiction about hard-wired fictionalizing, a fiction that reminds readers of their synaptic deceptions.

    The Brain Man: What is E. L. Doctorow Up to?|Tom LeClair|January 13, 2014|DAILY BEAST
  • Synaptic cells summed and integrated, cancelled and compared and with saucy assurance sent the findings on toward Cumulative.

    We're Friends, Now|Henry Hasse
  • Time-travel always raises the synaptic delay threshold, but the trouble is it's so variable.

    The Ego Machine|Henry Kuttner
  • One thing remained, unasked and unbeknownst, grooved with synaptic permanence in their burgeoning brains.

    The Beginning|Henry Hasse

British Dictionary definitions for synaptic (1 of 2)



/ (sɪˈnæptɪk) /


of or relating to a synapse
Derived Formssynaptically, adverb

British Dictionary definitions for synaptic (2 of 2)


/ (sɪˈnæpsɪs) /

noun plural -ses (-siːz)

cytology the association in pairs of homologous chromosomes at the start of meiosis
another word for synapse

Word Origin for synapsis

C19: from New Latin, from Greek sunapsis junction, from sunaptein to join together, from syn- + haptein to connect
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for synaptic (1 of 2)


[ sĭ-năptĭk ]


Of or relating to synapsis or a synapse.

Medicine definitions for synaptic (2 of 2)


[ sĭ-năpsĭs ]

n. pl. syn•ap•ses (-sēz)

The side-by-side association of homologous paternal and maternal chromosomes during early meiotic prophase.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.