removablebase
nounUK /rɪˈmuːvəbl beɪs/
US /rɪˈmuːvəbl beɪs/
A removable base is a bottom part that you can take off and put back on.
The cake pan has a removable base, so the cake comes out easily.
OTHER MEANINGS
2. The detachable bottom piece of a cake tin or baking pan.
Lift the cake off the removable base after it cools.
3. A stand or support that can be taken apart from the main object.
The lamp's removable base makes it easy to pack.
4. A bottom section of a toy or model that can be swapped out.
This robot figure comes with a removable base for display.