Definition of "vertex" in English

noun

1. The highest point, top or apex of something.

   • The mountain’s vertex was covered in snow.
   • He reached the vertex of his career after decades of work.

2. (geometry) An angular point of a polygon, polyhedron or higher order polytope.

3. (mathematics) A point on the curve with a local minimum or maximum of curvature.

4. (graph theory) One of the elements of a graph joined or not by edges to other vertices.

5. (computer graphics) A point in 3D space, usually given in terms of its Cartesian coordinates.

6. (optics) The point where the surface of a lens crosses the optical axis.

7. (particle physics) An interaction point.

8. (astrology) The point where the prime vertical meets the ecliptic in the western hemisphere of a natal chart.

9. (typography) A sharp downward point opposite a crotch, as in the letters "V" and "W" but not "Y".