cubital joint vs human elbow

cubital joint and human elbow both are nouns.

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

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

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

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

cubital joint (noun)	human elbow (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