fontanel

or fon·ta·nelle

[ fon-tn-el ]
/ ˌfɒn tnˈɛl /

noun Anatomy.

one of the spaces, covered by membrane, between the bones of the fetal or young skull.

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Origin of fontanel

1375–1425; late Middle English fontinel < Middle French fontanele little spring, diminutive of fontaine fountain
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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Medical definitions for fontanel

fontanel

n.

Any of the soft membranous gaps between the incompletely formed cranial bones of a fetus or infant.soft spot
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.