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Definition of Belly button
1. Noun. A scar where the umbilical cord was attached. "She had a tattoo just above her bellybutton"
Exact synonyms: Bellybutton, Navel, Omphalos, Omphalus, Umbilicus
Group relationships: Abdomen, Belly, Stomach, Venter
Generic synonyms: Point
Derivative terms: Umbilical
Group relationships: Abdomen, Belly, Stomach, Venter
Generic synonyms: Point
Derivative terms: Umbilical
Definition of Belly button
1. Noun. (informal) The navel. ¹
¹ Source: wiktionary.com
Medical Definition of Belly button
1. The navel or umbilicus. The one-time site of attachment of the umbilical cord. The term belly button was coined around 1877. (12 Dec 1998)