Definition
| • | A triangular protection from the intrados of an arch, or from an inner curve of tracery. |
| • | The beginning or first entrance of any house in the calculations of nativities, etc. |
| • | The point or horn of the crescent moon or other crescent-shaped luminary. |
| • | A multiple point of a curve at which two or more branches of the curve have a common tangent. |
| • | A prominence or point, especially on the crown of a tooth. |
| • | A sharp and rigid point. |
| • | To furnish with a cusp or cusps. |
