American English

Definition of umbilicus noun from the Oxford Advanced American Dictionary

 

umbilicus

 noun
noun
NAmE//ʌmˈbɪlɪkəs//
 
(pl. umbilici
NAmE//ʌmˈbɪləˌsaɪ//
 
, NAmE//ʌmˈbɪləˌkaɪ//
 
or umbilicuses)
(technology)
 
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the navel
See the Oxford Advanced Learner's Dictionary entry: umbilicus