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Related to fontanelle: sunken fontanelle
fon·ta·nelalso fon·ta·nelle (fŏn′tə-nĕl′)
Any of the soft membranous gaps between the incompletely formed cranial bones of a fetus or an infant. Also called soft spot.
[Middle English fontinel, from Old French fontanele, diminutive of fontaine, fountain; see fountain.]
(Anatomy) anatomy any of several soft membranous gaps between the bones of the skull in a fetus or infant
[C16 (in the sense: hollow between muscles): from Old French fontanele, literally: a little spring, from fontaine fountain]
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|Noun||1.||fontanelle - any membranous gap between the bones of the cranium in an infant or fetus|
child's body - the body of a human child
orifice, porta, opening - an aperture or hole that opens into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart"
anterior fontanelle - corresponds to the bregma when bones have ossified
sphenoid fontanel, sphenoid fontanelle, sphenoidal fontanel, sphenoidal fontanelle - the irregularly shaped area on either side of the cranium where the frontal bone and the anterior tip of the parietal bone and the temporal bone and the greater wing of the sphenoid bone meet; corresponds to the pterion when bones have ossified