from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A type of immovable articulation, as of a tooth inserted into its bony socket.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a type of fibrous, immovable joint such as the one between the teeth and the alveolar bone
from the GNU version of the Collaborative International Dictionary of English
- n. A form of union or immovable articulation where a hard part is received into the cavity of a bone, as the teeth into the jaws.
from The Century Dictionary and Cyclopedia
- n. A kind of synarthrosis or immovable articulation in which one part enters into another like a peg or nail.
My smile is fifty thousand watts of thirty or so remaining teeth, happily grinning without a gomphosis in a trembling mandible.
There are four varieties of synarthrosis: sutura, schindylesis, gomphosis, and synchondrosis.
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