anterior fontanelle vs fontanel

anterior fontanelle and fontanel both are nouns.

Word	Noun	Adjective	Verb	Adverb
anterior fontanelle	Yes	No	No	No
fontanel	Yes	No	No	No

As nouns, fontanel is a hypernym of anterior fontanelle; that is, fontanel is a word with a broader meaning than anterior fontanelle:

anterior fontanelle: corresponds to the bregma when bones have ossified
fontanel: any membranous gap between the bones of the cranium in an infant or fetus

Other hypernyms of anterior fontanelle include fontanelle, soft spot.

anterior fontanelle (noun)	fontanel (noun)
corresponds to the bregma when bones have ossified	any membranous gap between the bones of the cranium in an infant or fetus