- An example of a vertex is a mountain peak.
- An example of a vertex is the top of the head.
Vertex is the top or highest point.
nounpl. -·tex·es or -·ti·ces·
- the highest point; summit; apex, as the top point of the sun, moon, etc. above the horizon
- the top or crown of the head
- the point of intersection of the two sides of an angle
- a corner point of a triangle, square, cube, parallelepiped, or other geometric figure bounded by lines, planes, or lines and planes
- Optics the point at the center of a lens at which the axis of symmetry intersects the curve of the lens
Origin of vertexL, the top, the turning point from vertere, to turn: see verse
nounpl. ver·ti·ces, also ver·tex·es
- The highest point; the apex or summit: the vertex of a mountain.
- Anatomy a. The highest point of the skull.b. The top of the head.
- In astrology, the highest point reached in the apparent motion of a celestial body.
- Mathematics a. The point at which the sides of an angle intersect.b. The point on a triangle or pyramid opposite to and farthest away from its base.c. A point on a polyhedron common to three or more sides.d. A point of maximal curvature on a parabola or hyperbola.
Origin of vertexLatin whirlpool, crown of the head (where the hair forms a whorl), vertex from vertere to turn ; see wer-2 in Indo-European roots.
(plural vertices or vertexes)
- The highest point of something.
- (anatomy) The highest surface on the skull.
- (geometry) The common point of the two rays of the angle, or its equivalent structure in polyhedra (meeting of edges) and higher order polytopes.
- (mathematics) A point on the curve with a local minimum or maximum of curvature.
- (graph theory) One of the elements of a graph joined or not by edges to other vertices.
- (computer graphics) A point in 3D space, usually given in terms of its Cartesian coordinates.
- (optics) The point where the surface of a lens crosses the optical axis.
- (nuclear or particle physics) An interaction point.
- (astrology) The point where the prime vertical meets the ecliptic in the western hemisphere of a natal chart.
Latin vertex (“top, peak"), from vertere (“to turn")