Related Clues:
- Concave lint trap?
- Navel designation
- Concave belly button
- Driving-course marker
- Navel concavity
- Funnel's shape
- CONTROL's ___ of Silence
- It doesn't come out of the stomach
- It gets a scoop or two
- Omphalos variety
- Navel observation
- Roadside warning
- Construction site reminder
- Gelato holder
- Umbilical development