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gomphosis

[gom-foh-sis]
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noun, plural gom·pho·ses [gom-foh-seez] /gɒmˈfoʊ siz/. Anatomy.
  1. an immovable articulation in which one bone or part is received in a cavity in another, as a tooth in its socket.
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Origin of gomphosis

1570–80; < New Latin < Greek gomphō-, verbid stem of gomphoûn to bolt together (derivative of gómphos bolt, nail) + New Latin -sis -sis; see -osis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for gomphoses

gomphosis

noun plural -ses (-siːz)
  1. anatomy a form of immovable articulation in which a peglike part fits into a cavity, as in the setting of a tooth in its socket
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Word Origin

C16: from New Latin, from Greek gomphoein to bolt together, from gomphos tooth, peg
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

gomphoses in Medicine

gomphosis

(gŏm-fōsĭs)
n. pl. gom•pho•ses (-sēz)
  1. A type of immovable articulation, as of a tooth inserted into its bony socket.peg-and-socket joint
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.