A freely moving joint in which the bones are so articulated as to allow extensive movement in one plane [syn: hinge joint, ginglymus, ginglymoid joint]
Ginglymus \Gin"gly*mus\, n.; pl. Ginglymi. [NL., fr. Gr. ? a
hingelike joint, a ball and socket joint.] (Anat.)
A hinge joint; an articulation, admitting of flexion and
extension, or motion in two directions only, as the elbow and
the ankle.
[1913 Webster]
