| 释义 |
{{Wiktionarypar|umbilicus}} Umbilicus may refer to: - The navel or belly button
- Umbilicus (mollusc), a feature of gastropod, Nautilus and Ammonite shell anatomy
- Umbilicus, a synonym for the navel or belly button
- Umbilicus (genus), a genus of over ninety species of perennial flowering plants
- Umbilicus urbis Romae, the designated center of the city of Rome from which and to which all distances in Rome and the Roman Empire were measured
- Umbilicus mundi, or "the world's navel", a Greek artifact
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