[ sin-ahr-throh-sis ]
/ ˌsɪn ɑrˈθroʊ sɪs /

noun, plural syn·ar·thro·ses [sin-ahr-throh-seez] /ˌsɪn ɑrˈθroʊ siz/. Anatomy.

immovable articulation; a fixed or immovable joint; suture.

Origin of synarthrosis

1570–80; < New Latin < Greek synárthrōsis, equivalent to synarthrō- (variant stem of synarthroûsthai to be joined by articulation, equivalent to syn- syn- + árthro(n) joint + -esthai infinitive suffix) + -sis -sis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for synarthrosis


/ (ˌsɪnɑːˈθrəʊsɪs) /

noun plural -ses (-siːz)

anatomy any of various joints which lack a synovial cavity and are virtually immovable; a fixed joint

Derived Forms

synarthrodial, adjectivesynarthrodially, adverb

Word Origin for synarthrosis

via New Latin from Greek sunarthrōsis, from sunarthrousthai to be connected by joints, from sun- syn- + arthron a joint
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 synarthrosis


[ sĭn′är-thrōsĭs ]

n. pl. syn•ar•thro•ses (-sēz)

immovable joint
movable joint
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.