vertex

Meaning

1. The highest point, top or apex of something.
2. The highest surface on the skull; the crown of the head.
3. An angular point of a polygon, polyhedron or higher order polytope.
4. The common point of the two rays that form an angle.
5. The point at which an axis meets a curve or surface.
6. A point on the curve with a local minimum or maximum of curvature.
7. One of the elements of a graph joined or not by edges to other vertices.
8. A point in 3D space, usually given in terms of its Cartesian coordinates.
9. The point where the surface of a lens crosses the optical axis.
10. An interaction point.
11. The point where the prime vertical meets the ecliptic in the western hemisphere of a natal chart.
12. A sharp downward point opposite a crotch, as in the letters "V" and "W" but not "Y".

Etymology / origin

Late Middle English, borrowed from Latin vertex (“whirl, eddy; top, crown, peak, summit”). Doublet of vortex.

Related words

Descendant words

• verteksi(Finnish) (bor)
• verter(Ladino) (cog)
• verter(Spanish) (cog)
• fertig(Welsh) (der)

Sources

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