diarthrosis Meaning, Definition & Usage

  1. noun a joint so articulated as to move freely
    articulatio synovialis; synovial joint.

WordNet

Di`ar*thro"sis noun
Etymology
NL., fr. Gr. , fr. to joint, articulate; through, asunder + to fasten by a joint, joint.
Definitions
  1. (Anat.) A form of articulation which admits of considerable motion; a complete joint; abarticulation. See Articulation.

Webster 1913