a vortex
A vertex is the name of a corner on a solid where three or more faces meet (plural = vertices).
a vertex
vertex
A corner
A vertex.
vertex
4 corners
VERTEX
vertex/vertices
That's a "vertex".
It is the vertex and its plural is vertices
The corner of a solid where two faces meet is called a "vertex." In three-dimensional geometry, a vertex is a point where edges converge, and it is one of the key elements in defining the shape of a solid. For example, a cube has eight vertices.