cubital joint vs ginglymus

cubital joint and ginglymus both are nouns.

Word	Noun	Adjective	Verb	Adverb
cubital joint	Yes	No	No	No
ginglymus	Yes	No	No	No

As nouns, ginglymus is a hypernym of cubital joint; that is, ginglymus is a word with a broader meaning than cubital joint:

cubital joint: hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped
ginglymus: a freely moving joint in which the bones are so articulated as to allow extensive movement in one plane

Other hypernyms of cubital joint include ginglymoid joint, hinge joint.

cubital joint (noun)	ginglymus (noun)
hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped	a freely moving joint in which the bones are so articulated as to allow extensive movement in one plane