What's the difference between diarthrosis and synarthrosis?

Diarthrosis

Definition:

(n.) A form of articulation which admits of considerable motion; a complete joint; abarticulation. See Articulation.

Example Sentences:

(1) The proximal tibio-fibular joint consists of a joint cavity surrounded by a joint capsule (diarthrosis) forming a rather rigid joint.
(2) The first part entire paper presents the most simple module of a diarthrosis, the kinematically open dimeric link chain.
(3) These findings are interpreted as different developmental stages of a diarthrosis generally formed between the corpus and the cornu majus.
(4) The formation of a joint cleft between the body and the greater horn of the hyoid bone seems to be predominant in the lateral and caudal parts of that diarthrosis.
(5) The kinematicaly open, dimeric link chain represents the simpliest module of a diarthrosis.
(6) The tibiofibular joint appears to be rather a syndesmosis than a diarthrosis.

Definition:

(n.) Immovable articulation by close union, as in sutures. It sometimes includes symphysial articulations also. See the Note under Articulation, n., 1.

Example Sentences:

(1) In the following study we will present a model that demonstrates the effects of normal, shearing, and general forces applied to the synarthrosis of the "intervertebral disk".
(2) The simpliest synarthrosis is represented by a (visco-)elastic disk that connects two rigid bodies.
(3) Therefore, the interface between the body structure and the elastic synarthrosis can be considered as a surface of infinite static (adhesive) friction, while the contacting surfaces in a diathrosis possess vanishing static friction.
(4) The unusual feature is the early synarthrosis, possibly caused by multiple factors.
(5) According to manifestation degree of these layers, development of the internal layer and size of the cavity three main variants of the ID structure are nominated: intervertebral synarthrosis, intervertebral hemiarthrosis and intervertebral "diathrosis" (real articulations have not been revealed between the vertebral bodies).
(6) The theory--presented in part I--shall be examined by the synarthrosis (Gomphosis; Articulatio dentoalaveolaris) "Periodontium" and not by the intervertebral disk because the required experimental equipment can probably also be used in vivo.