gomphosis

[gom-foh-sis]

gom·pho·sis

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

Origin:
1570–80; < Neo-Latin < Greek gomphō-, verbid stem of gomphoûn to bolt together (derivative of gómphos bolt, nail) + Neo-Latin -sis -sis; see -osis
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Gomphosis is always a great word to know.
So is optic nerve. Does it mean:
either one of the second pair of cranial nerves, consisting of sensory fibers that conduct impulses from the retina to the brain
the roof of the mouth, consisting of a hard palate and a soft palate that separates the oral cavity from the nasal cavity
Collins
World English Dictionary
gomphosis (ɡɒmˈfəʊsɪs)
 
n , pl -ses
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
 
[C16: from New Latin, from Greek gomphoein to bolt together, from gomphos tooth, peg]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

gomphosis gom·pho·sis (gŏm-fō'sĭs)
n. pl. gom·pho·ses (-sēz)
A type of immovable articulation, as of a tooth inserted into its bony socket. Also called peg-and-socket joint.

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