# vertex

### Definitions:

• The highest point; the apex or summit.
• None
• The highest point of the skull.
• The top of the head.
• In astrology, the highest point reached in the apparent motion of a celestial body.
• None
• The point at which the sides of an angle intersect.
• The point on a triangle or pyramid opposite to and farthest away from its base.
• A point on a polyhedron common to three or more sides.
• A point of maximal curvature on a parabola or hyperbola.
• In <em>geometry</em>, the point at which concurrent straights meet.
• The highest or principal point; apex; top; crown; summit.
• In <em>mathematics</em>, a point of a figure most distant from the center; any convex angle of a polygon.
• A turning point; the principal or highest point; top; summit; crown; apex.
• The top, or crown, of the head.
• The zenith, or the point of the heavens directly overhead.
• The point in any figure opposite to, and farthest from, the base; the terminating point of some particular line or lines in a figure or a curve; the top, or the point opposite the base.
• the point in which the axis of the curve intersects it.
• the point in which the sides of the angle meet.
• the point in which the axis pierces the surface.
• None
• The highest point of something.
• The highest <xref>surface</xref> on the skull.
• The common <xref>point</xref> of the two <xref>rays</xref> of the <xref>angle</xref>, or its equivalent structure in <xref>polyedra</xref> (meeting of <xref>edges</xref>) and higher order <xref>polytopes</xref>.
• A point on the <xref>curve</xref> with a local minimum or maximum of <xref>curvature</xref>.
• One of the elements of a <xref>graph</xref> joined or not by edges to other vertices.
• A point in <xref>3D</xref> space, usually given in terms of its <xref>Cartesian coordinates</xref>.
• The point where the <xref>surface</xref> of a <xref>lens</xref> crosses the <xref>optical axis</xref>.
• An interaction point.
• The point where the prime vertical meets the <xref>ecliptic</xref> in the western <xref>hemisphere</xref> of a natal chart.
• the point of intersection of lines or the point opposite the base of a figure
• the highest point (of something)
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