articulatio coxae vs coxa

articulatio coxae and coxa both are nouns.

Word	Noun	Adjective	Verb	Adverb
articulatio coxae	Yes	No	No	No
coxa	Yes	No	No	No

As nouns, articulatio coxae and coxa are synonyms defined as:

articulatio coxae and coxa: the ball-and-socket joint between the head of the femur and the acetabulum

Other synonyms of articulatio coxae include hip, hip joint.

articulatio coxae (noun)	coxa (noun)
the ball-and-socket joint between the head of the femur and the acetabulum	the ball-and-socket joint between the head of the femur and the acetabulum