| Answer | Crossword Clue |
|---|---|
| runout | merging of a curved surface into another surface |
| osculates | (of a curve or surface) Touch (another curve or surface) so as to have a common tangent at the point of contact |
| osculating | (of a curve or surface) Touch (another curve or surface) so as to have a common tangent at the point of contact |
| seat | part (as a socket) or surface on or in which another part or surface rests |
| developable | (of a curved surface) Capable of being flattened into a plane without overlap or separation, as with a cylinder |
| developing | Convert (a curved surface) conceptually into a plane figure as if by unrolling |
| develop | Convert (a curved surface) conceptually into a plane figure as if by unrolling |
