gnathion vs craniometric point

gnathion and craniometric point both are nouns.

Word	Noun	Adjective	Verb	Adverb
gnathion	Yes	No	No	No
craniometric point	Yes	No	No	No

As nouns, craniometric point is a hypernym of gnathion; that is, craniometric point is a word with a broader meaning than gnathion:

gnathion: the most inferior point of the mandible in the midline
craniometric point: a landmark on the skull from which craniometric measurements can be taken

gnathion (noun)	craniometric point (noun)
the most inferior point of the mandible in the midline	a landmark on the skull from which craniometric measurements can be taken