| Answer | Crossword Clue |
|---|---|
| indenting | Form deep recesses in (a line or surface) |
| generate | Form (a line, surface, or solid) by notionally moving a point, line, or surface |
| indentations | A deep recess in a surface or coastline |
| indentation | A deep recess in a surface or coastline |
| incisures | A deep indentation or notch in an edge or surface |
| directrix | A fixed line used in describing a curve or surface |
| directrices | A fixed line used in describing a curve or surface |
| incidences | The intersection of a line, or something moving in a straight line, such as a beam of light, with a surface |
| incidence | The intersection of a line, or something moving in a straight line, such as a beam of light, with a surface |
