biarticular

diarthric

 [di-ahr´thrik] pertaining to or affecting two different joints" >joints; called also biarticular and diarticular.

di·ar·thric

(dī-ar'thrik), Relating to two joints. Synonym(s): biarticular, diarticular [G. di-, two, + arthron, joint]

di·ar·thric

(dī-ahr'thrik) Relating to two joints.
Synonym(s): biarticular, diarticular. [G. di-, two, + arthron, joint]