American English

Definition of fontanel noun from the Oxford Advanced American Dictionary

 

fontanel

 noun
(especially Canadian English fontanelle) noun
NAmE//ˌfɑntəˈnɛl//
 
, NAmE//ˈfɑntəˌnɛl//
 
(anatomy)
 
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a space between the bones of a baby's skull, which makes a soft area on the top of the baby's head