Word Study
ginglymus
CIDE DICTIONARY
ginglymus, n. [NL., fr. Gr. a hingelike joint, a ball and socket joint.].
A hinge joint; an articulation, admitting of flexion and extension, or motion in two directions only, as the elbow and the ankle. [1913 Webster]
OXFORD DICTIONARY
ginglymus, n. (pl. ginglymi) Anat. a hingelike joint in the body with motion in one plane only, e.g. the elbow or knee.
Etymology
mod.L f. Gk gigglumos hinge
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