The Collaborative International Dictionary of English v.0.48:

Ginglymoid \Gin"gly*moid\, Ginglymoidal \Gin`gly*moid"al\, a.
   [Gr. ?; ? ginglymus + e'i^dos form: cf. F. ginglymoide,
   ginglymo["i]dal.] (Anat.)
   Pertaining to, or resembling, a ginglymus, or hinge joint;
   ginglyform.
   [1913 Webster]