Fontanel

n.	1.	(Med.) An issue or artificial ulcer for the discharge of humors from the body.
	2.	(Anat.) One of the membranous intervals between the incompleted angles of the parietal and neighboring bones of a fetal or young skull; - so called because it exhibits a rhythmical pulsation.

Noun

1.

fontanel - any membranous gap between the bones of the cranium in an infant or fetus Synonyms: fontanelle, soft spot

anterior fontanelle, braincase, brainpan, child's body, cranium, fontanelle, opening, orifice, porta, soft spot, sphenoid fontanel, sphenoid fontanelle, sphenoidal fontanel, sphenoidal fontanelle