fillet

1. A thin strip of any material, in various technical uses.
2. A heavy bead of waterproofing compound or sealant material generally installed at the point where vertical and horizontal surfaces meet.
3. A rounded relief or cut at an edge, especially an inside edge, added for a finished appearance and to break sharp edges.
4. A strip or compact piece of meat or fish from which any bones and skin and feathers have been removed.
5. A thin featureless moulding/molding used as separation between broader decorative mouldings.
6. The space between two flutings in a shaft.
7. An ordinary equal in breadth to one quarter of the chief, to the lowest portion of which it corresponds in position.
8. The thread of a screw.

Plural fillets