human elbow vs cubital joint

human elbow and cubital joint both are nouns.

Word	Noun	Adjective	Verb	Adverb
human elbow	Yes	No	No	No
cubital joint	Yes	No	No	No

As nouns, human elbow and cubital joint are synonyms defined as:

human elbow and cubital joint: hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped

Other synonyms of human elbow include articulatio cubiti, cubitus, elbow, elbow joint.

human elbow (noun)	cubital joint (noun)
hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped	hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped