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Definition of Belly button

Belly button: The navel or umbilicus. The one-time site of attachment of the umbilical cord. The term "belly button" was coined around 1877.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=2448
Last Editorial Review: 3/26/1998 2:24:00 PM

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