from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A form of articulation in which the bones are rigidly fused by cartilage.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A form of only slightly-moveable articulation between bones joined by hyaline cartilage
from the GNU version of the Collaborative International Dictionary of English
- n. An immovable articulation in which the union is formed by cartilage.
from The Century Dictionary and Cyclopedia
- n. In anatomy, union of bones by means of cartilage; a kind of articulation in which a layer or plate of cartilage so intervenes between the apposed surfaces of the bones that the joint has little if any motion.
Where the connecting medium is cartilage the joint is termed a synchondrosis (Fig. 297).
-- The place of entrance of the bullet was 1 inch in front of the right anterior superior spine, and of exit behind the left sacro-iliac synchondrosis.
The patient complained of some stiffness in the lumbo-sacral region, but the right synchondrosis was no doubt implicated in the track.
In front of the foramen magnum the basilar portion of the occipital and the posterior part of the body of the sphenoid form a grooved surface which supports the medulla oblongata and pons; in the young skull these bones are joined by a synchondrosis.
There are four varieties of synarthrosis: sutura, schindylesis, gomphosis, and synchondrosis.
Its lateral half articulates, by means of a synchondrosis, with the petrous portion of the temporal, and between the two bones on the under surface of the skull, is a furrow, the sulcus tubæ, for the lodgement of the cartilaginous part of the auditory tube.
Section through occipitosphenoid synchondrosis of an infant.
A separation of 3/4 inch could be discerned at the symphysis, and in addition the sacroiliac synchondrosis was also quite movable.
Its upper extremity is thus not always constant, varying in position from the sacro-lumbar fibro-cartilage to the upper end of the sacro-iliac synchondrosis, or even a little lower down.
With this slight difference, the position of the two vessels is precisely similar, each extending along the brim of the pelvis from the bifurcation of the aorta towards the sacro-iliac synchondrosis for about two inches.