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Webster 1913 Edition
Diarthrosis
‖
Diˊar-thro′sis
,Noun.
 [NL., fr. Gr. [GREEK], fr. [GREEK] to joint, articulate; 
διά 
through, asunder + [GREEK] to fasten by a joint, ἄρθρον 
joint.] (Anat.) 
A form of articulation which admits of considerable motion; a complete joint; abarticulation. See 
Articulation
.