vertex: meaning and definitions

The highest point; the apex or summit: the vertex of a mountain.

Anatomy The highest point of the skull.

Anatomy The top of the head.

Astronomy The highest point reached in the apparent motion of a celestial body.

Mathematics The point at which the sides of an angle intersect.

Mathematics The point on a triangle or pyramid opposite to and farthest away from its base.

Mathematics A point on a polyhedron common to three or more sides.