| Answer | Crossword Clue |
|---|---|
| spinode | point where two branches of a curve meet, end, and are tangent |
| osculation | a kiss; the point where two branches of a curve share, follow a common tangent |
| osculations | OSCULATION, a kiss; the point where two branches of a curve share, follow a common tangent |
| crunode | a point at which two branches of a curve intersect, each branch having a distinct tangent; node |
| CUSP | Where two branches of a curve meet, in math |
